Heteroaryl derivative, method for producing same, and pharmaceutical composition comprising same as effective component

ABSTRACT

The present invention relates to a 6-(isooxazolidin-2-yl)-N-phenylpyrimidin-4-amine derivative, and a pharmaceutical composition for preventing or treating cancer comprising the compound as an effective component. The compound exhibits high inhibitory activity against an epidermal growth factor receptor (EGFR) variant, or wild-type or variants of one or more of ERBB2 and ERBB4, and thus may be usefully used in the treatment of cancers in which same are expressed. In particular, the compound exhibits excellent inhibitory activity on proliferation of lung cancer cell lines, and thus can be usefully used in the treatment of lung cancer.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No. 17/440,630, which adopts the international filing date of Mar. 19, 2020, which is a U.S. national stage application under 35 U.S.C. § 371 of International Application No. PCT/KR2020/095044, filed on Mar. 19, 2020, which claims the priority benefit of Korean Application No. 10-2019-0031269, filed on Mar. 19, 2019, and Korean Application No. 10-2019-0134472, filed on Oct. 28, 2019, all of which are incorporated herein by reference in their entirety for all purposes.

TECHNICAL FIELD

The present invention relates to a heteroaryl derivative. Specifically, the present invention relates to a 6-(isooxazolidine-2-yl)-N-phenylpyrimidine-4-amine derivative. More specifically, the present relates to the compound, stereoisomers thereof, hydrates thereof, or pharmaceutically acceptable salts thereof, a method for preparation of the same, and a pharmaceutical composition for preventing or treating cancer comprising the same as an effective component.

BACKGROUND ART

The occurrence of cancers is related to a number of environmental factors including chemical substances, radiation, virus, and changes of oncogenes, tumor suppressor genes, genes associated with apoptosis and DNA repair and the like. Recently, the molecular mechanism of cancers is to be understood, and thus, this makes a targeted anticancer therapy, which is a new therapy, become available. Targeted therapeutic agents are generally prepared to show an effect by targeting molecules that cancer cells characteristically have. The molecular targets are genes associated with signal transduction pathway of cancer cells, angiogenesis, cellular matrix, cell cycle regulator, apoptosis and the like. An important targeted therapeutic agent used in the current therapy includes signal transduction pathway inhibitors, including tyrosine kinase inhibitors, and angiogenesis inhibitors and the like. It has been found that a protein tyrosine kinase plays an important role in a number of malignant tumors. In particular, it is known that epidermal growth factor receptor (EGFR), which is a receptor tyrosine kinase of ErbB family, is abnormally activated in a number of epithelial cell tumors including non-small cell lung carcinoma (NSCLC), breast cancer, glioma, squamous cell carcinoma of head and neck, colorectal cancer, rectal adenocarcinoma, head and neck cancer, gastric cancer, and prostate cancer; and the activation of the above EGFR-tyrosine kinase causes a persistent cell proliferation, invasion of the surrounding tissue, remote metastasis, and angiogenesis, and increases a cell survival.

Specifically, the EGFR, which is one of tyrosine kinase receptors of ErbB family, is a transmembrane tyrosine kinase that has an extracellular ligand-binding domain and an intracellular domain including a tyrosine kinase domain, and may include EGFR (referred to as ErbB1 or HER1), HER2 (referred to as ErbB2 or neu), ErbB3, and ErbB4 (referred to as HER4). If a ligand binds to a receptor forming homodimer or heterodimer, a tyrosine kinase in a cell is activated, and a signal stimulated by EGFR as such activates phosphatidylinositol 3-kinase ((PI3K)/AKT/mTOR, RAS/RAF/MAPK, and JAK/STAT) signal transduction pathway (Non-patent Literature 0001). In particular, EGFR is overexpressed in at least a half of non-small cell lung cancer (NSCLC), and thus, a number of studies have been carried out in which EGFR is a target of a therapy. EGFR TKIs (tyrosine kinase inhibitors), which inhibit an activity of EGFR tyrosine kinase, have been developed, and representative drugs include Gefitinib (IRESSA™) erlotinib (TARCEVA™), and lapatinib (TYKERB™, TYVERB™).

On the other hand, it was reported that, in 2004, an activating mutation of EGFR is correlated with a response to gefitinib therapy in non-small cell lung cancer (NSCLC) (Non-patent Literature 0002 and 0003). Specifically, it is known that the above EGFR mutation is largely classified into a sensitizing mutation and a resistant mutation, and a deletion of exon 19 and a L858R point mutation of exon 21 are the most important sensitizing mutations and make up about 85 to 90 percent of a sensitizing mutation, and an exon 19 del mutation is more sensitizing to the TKI. On the other hand, it is known that a T790M point mutation of exon 20 is the most important resistant mutation and is found in at least 50 percent of acquired resistant patients (Non-patent Literature 0004).

Somatic mutations identified hitherto include an in-frame deletion in exon 19 or an insertion in exon 20, as well as, a point mutation in which a single nucleic acid residue is modified within an expressed protein (for example, L858R, G719S, G719C, G719A, L861Q) (Non-patent Literature 0005 to 0007).

Despite an early clinical effect of gefitinib/erlotinib in NSCLC patients with an EGFR mutation, a progressive cancer develops in most patients in the end while these patients are receiving a therapy of these drugs. In an early study of recurred samples, a secondary EGFR mutation, T790M, was identified, which made gefitinib and erlotinib to be ineffective inhibitors of EGFR kinase activity (Non-patent Literature 0008 to 0009). It has been proved in the follow-up study that the EGFR T790M mutation was found in approximately 50 percent ( 24/48) of tumors derived from patients who acquired a resistance against gefitinib or erlotinib (Non-patent Literature 0010 to 0012). The secondary genetic modification is caused in a position similar to a ‘gatekeeper’ residue and a secondary resistance allele associated with the same in patients to be treated with a kinase inhibitor (for example, T3151 within ABL in imatinib resistant CML).

It has been known for a long time that EGFR del19 or EGFR L858R, which is an EGFR mutation, is a major cause of non-small cell lung cancer and head and neck cancer, and IRESSA and TARCEVA, which are therapeutic drugs of the cancers, were developed and are currently used in clinical trials. However, when such drugs were administered for cancer patients, an acquired resistance caused by an EGFR secondary mutation based on the structure of the drug was observed. In addition, it was found that this was actually a major cause of drug resistance. If first generation inhibitors of EGFR have been used for about ten months in average, an acquired resistance, which is a T790M mutation positioned in a gatekeeper of EGFR kinase, occurs to prevent first generation inhibitors of EGFR exerting a medicinal effect. That is, EGFR del19 T790M or EGFR L858R T790M double mutation occurs to prevent conventional therapeutic agents exerting a medicinal effect.

PRIOR ART LITERATURE Non-Patent Literature

-   (Non-patent Literature 0001) Nat Rev Cancer 2007; 7:169-81. -   (Non-patent Literature 0002) Science 2004; 304:1497-500. -   (Non-patent Literature 0003) New England Journal of Medicine 2004;     350:2129-39. -   (Non-patent Literature 0004) Clin Cancer Res 2006; 12:6494-6501. -   (Non-patent Literature 0005) Fukuoka et al. JCO 2003. -   (Non-patent Literature 0006) Kris et al. JAMA 2003. -   (Non-patent Literature 0007) Shepherd et al. NEJM 2004. -   (Non-patent Literature 0008) Kobayashi et al. NEJM 2005. -   (Non-patent Literature 0009) Pao et al. PLOS Medicine 2005. -   (Non-patent Literature 0010) Kosaka et al. CCR 2006. -   (Non-patent Literature 0011) Balak et al. CCR 2006. -   (Non-patent Literature 0012) Engelman et al. Science 2007.

DISCLOSURE Technical Problem

The purpose of one aspect of the present invention is to provide a compound which exhibits inhibitory effects against wild type or mutant EGFR and is therefore useful in the treating of cancer, and stereoisomers, hydrates, or pharmaceutically acceptable salts of the compound.

The purpose of another aspect of the present invention is to provide a method for preparation of the compound.

The purpose of yet another aspect of the present invention is to provide a pharmaceutical composition for preventing or treating cancer, the composition comprising the compound or stereoisomers, hydrates or pharmaceutically acceptable salts of the same as an effective component.

The purpose of yet another aspect of the present invention is to provide a pharmaceutical composition which suppresses wild type EGFR (epidermal growth factor receptor) or EGFR mutations to prevent or treat cancer.

Technical Solution

To achieve the above-stated purposes,

The present invention provides a compound represented by Chemical Formula 1, stereoisomers of the same, hydrates or the same, or pharmaceutically acceptable salts of the same:

In Chemical Formula 1,

R¹ is hydrogen, halogen, C₁₋₈ alkyl, or C₁₋₈ alkoxy, where the C₁₋₈ alkyl and C₁₋₃ alkoxy of R¹ are, respectively and independently, substituted or unsubstituted by at least one halogen,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are, respectively and independently, hydrogen or C₁₋₃ alkyl, or the R⁷ and R⁸ are linked together with an N atom to which they are bonded to form a heterocycloalkyl or 3 to 12 atoms, where the C₁₋₈ alkyl or heterocycloalkyl of 3 to 12 atoms of R⁷ and R⁸ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of C₁₋₈ alkyl, C₁₋₈ alkoxy and C₁₋₈ alkylamino,

R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, halogen or C₁₋₈ alkyl, or the R⁹ and R¹⁰ are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyl, heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent R selected from among a group comprised of hydroxy, C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, C₁₋₈ alkylcarbonyl, —NR¹²R¹³, and heterocycloalkyl of 3 to 12 atoms, where the substituents R are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from a group comprised of halogen; carbonyl; C₁₋₈ alkyl substituted or unsubstituted by hydroxy or C₁₋₈ alkylamino; C₂₋₈ alkenyl; C₁₋₈ alkoxy; C₁₋₈ alkylamino; C₁₋₈ alkylcarbonyl; and, a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₈ alkyl, and where the R¹² and R¹³ are, respectively and independently, hydrogen, C₁₋₈ alkyl, C₂₋₈ alkenyl, C₁₋₈ alkylcarbonyl, C₂₋₈ alkenylcarbonyl, or a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₈ alkyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, where the R¹⁴, R¹⁵ and R¹⁶ are, respectively and independently, hydrogen, halogen, or C₁₋₈ alkyl substituted or unsubstituted by C₁₋₈ alkylamino,

R⁵ is C₁₋₈ alkyl, an aryl of 3 to 12 atoms, a heteroaryl of 3 to 12 atoms, or a heterocycloalkyl of 3 to 12 atoms, and the C₁₋₈ alkyl, aryl of 3 to 12 atoms, heteroaryl of 3 to 12 atoms, or heterocycloalkyl of 3 to 12 atoms of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of halogen, cyano, C₁₋₈ alkyl substituted or unsubstituted by halogen, C₂₋₈ alkenyl, C₁₋₈ alkoxy, C₂₋₈ alkynyl and C₁₋₈ alkylamino,

and R^(e) is hydrogen or C₁₋₈ alkyl.

Another aspect of the present invention provides:

a method for preparing the compound of Chemical Formula 5, from the compound of Chemical Formula 4;

a step of preparing the compound of Chemical Formula 6 from the compound of Chemical Formula 5; and,

a step of preparing the compound of Chemical Formula 1 from the compound of Chemical Formula 6:

In Chemical Formula 4, G is a leaving group, and R¹ and R⁶ are respectively the same as defined in the above.

Yet another aspect of the present invention provides a pharmaceutical composition for preventing or treating cancer, the composition comprising the compound of the present invention, or stereoisomers, hydrates or pharmaceutically acceptable salts of the same as an effective component.

Benefits of the Invention

The compound provided by one aspect of the present invention, and stereoisomers, hydrates or pharmaceutically acceptable salts thereof exhibit high inhibition activity against not only mutants of EGFR (epidermal growth factor receptor) but also wild type or mutants of at least one of ERBB2 and ERBB4, and therefore can be usefully used in the treatment of cancers in which these kinases are expressed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 show experimental data results in which a PDX (Exon20 ins V769_D770ins ASV) cell line xenograft in vivo was orally administered the Example Compounds for 28 days followed by observation for 21 days without administration to verify whether or not cancer was suppressed.

BEST MODE(S) FOR CARRYING OUT THE INVENTION

In the following, the present invention will be explained in further detail with reference to embodiments.

Embodiments of the present invention may be modified into various different forms, and the scope of the present invention is not limited to the embodiments explained in the following. The embodiments of the present invention are provided so as to provide persons having ordinary skill in the art to which the present invention belongs with a fuller disclosure of the present invention.

Throughout the specification, to “comprise” a certain component element means, unless specifically stated to the contrary, that other components elements may be further comprised, rather than that other component elements are excluded.

In the structural formulae of the present specification, of the symbols which bonds atoms and/or groups to each other, “-” may refer to a single bond, and “=” may refer to a double bond. Such symbols may be omitted, and may be indicated in cases necessary for specifying the bonded atoms or the position of a bond.

In the present specification, atoms being “connected” may include not only cases wherein atoms are connected directly but also cases wherein atoms are connected indirectly using other atoms and/or groups as a medium. Here, the other atoms and/or groups may be, but are not limited to, oxygen, sulfur, C₁₋₈ alkylamino or C₁₋₈ alkylene groups, and these atoms and/or groups may be substituted or unsubstituted.

In the present specification, the expression “substituted or unsubstituted” may refer to, unless otherwise stated, that one or a plurality of hydrogen atoms is substituted or unsubstituted by another atom or substituent. The substituent may be selected from a group comprised of halogen (chloro (Cl), iodo (I), bromo (Br), fluoro (F)), C₁₋₁₀ alkyl, C₂₋₁₀ alkenyl, C₂₋₁₀ alkynyl, hydroxyl, C₁₋₁₀ alkoxy, amino, nitro, thiol, thioether, imine, cyano, phosphonato, phospine, carboxy, carbamoyl, carbamic acid, acetal, urea, thiocarbonyl, sulfonyl, sulfonamide, ketone, aldehyde, ester, acetyl, acetoxy, amide, oxygen (═O), haloalkyl (e.g. trifluoromethyl), substituted aminoacyl and aminoalkyl, carbon ring cycloalkyls which are single ring or fused or non-fused multiple ring (e.g. cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl), hetero cycloalkyls which are single ring or fused or non-fused multiple ring (e.g. pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, or thiazinyl, carbon ring or hetero ring, single ring or fused or non-fused multiple ring aryls (e.g. phenyl, naphthalenyl, pyrrolyl, indolyl, furanyl, thienyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl, triazolyl, tetrazolyl, pyrazolyl, pyridinyl, quinolinyl, isoquinolinyl, acridinyl, pyrazinyl, pyridazinyl, pyrimidinyl, benzimidazolyl, benzothienyl, or benzofuranyl), aminos (primary, secondary or tertiary), aryl, aryloxy, and aryl-alkyl, but is not limited hereto. Further, the respective example substituents above may again be substituted or unsubstituted by a substituent selected among these substituents.

In the present specification, “halogen” may be F, Cl, Br or I.

In the present specification, “alkyl” may refer to, unless otherwise stated, a saturated hydrocarbon which is a straight chain or branched chain noncyclic alkyl; a cyclic alkyl; or a combination of the two. Further, “C₁₋₈ alkyl” may refer to an alkyl which comprises one to eight carbon atoms. Non-limiting examples of a noncyclic alkyl include methyl, ethyl, N-propyl, N-butyl, N-pentyl, N-hexyl, N-heptyl, N-octyl, isopropyl, secondary (sec)-butyl, tertiary (tert)-butyl, isopentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl and 2,3-dimethylbutyl. Non-examples of a cyclic alkyl include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, or cyclooctyl, etc. Non-limiting examples of an alkyl wherein cyclic and non-cyclic alkyls are combined include methylcyclopropyl, cyclopropylmethyl, ethylcyclopropyl, cyclopropylmethyl, methylcyclobutyl, cyclobutylmethyl, ethylcyclopentyl, and cyclopentylmethyl.

In the present specification, “cycloalkyl” may refer to an alkyl, in particular a cycloalkyl, where an alkyl is as defined in the foregoing.

In the present specification, “alkoxy” is an alkyl ether group which may refer to a —(O-alkyl), where an alkyl is as defined in the foregoing. Further, “C₁₋₈ alkoxy” may refer to an alkoxy which comprises a C₁₋₈ alkyl, that is, —(O—C₁₋₈ alkyl), and examples of a C₁₋₈ alkoxy may include methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, iso-butoxy, sec-butoxy, tert-butoxy, and n-pentoxy, but is not limited hereto.

In the present specification, “heterocycloalkyl” may refer to a ring comprising one to five heteroatoms selected from among N, O and S are ring-forming atoms, which may be saturated or partially unsaturated. Unless otherwise mentioned, a heterocycloalkyl may be a single ring, or a multiple ring such as a spiro ring, a bridge ring or a fused ring. Further, “heterocycloalkyl of 3 to 12 atoms” may refer to a heterocycloalkyl which comprises 3 to 12 ring-forming atoms. Non-limiting examples of a heterocycloalkyl include pyrrolidine, piperidine, N-methyl piperidine, imidazolidine, pyrazolidine, butylolactam, valerolactam, imidazolinone, hydantoin, dioxolane, phthalimide, piperidine, piperidine-2,4(1H,3H)-dione, 1,4-dioxane, morpholine, thiomorpholine, thiomorpholine-S-oxide, thiomorpholine-S,S-oxide, piperazine, pyran, pyridine, 3-pyrroline, thiopyran, pyrone, tetrahydrofuran, tetrahydrothiophene, quinuclidine, tropane, 2-azaspiro[3.3]heptane, (1R,5S)-3-azabicyclo[3.2.1]octane, (1s,4s)-2-azabicyclo[2.2.2]octane, or (1R,4R)-2-oxa-5-aza bicyclo[2.2.2]octane.

In the present specification, “alkylamino” may refer to —(NR′R″), where R′ and R″ may, respectively and independently, be selected from a group comprised of hydrogen and C₁₋₈ alkyls, where the selected R′ and R″ may be, respectively and independently, substituted or unsubstituted. Further “C₁₋₈ alkylamino” may refer to an amino which comprises a C₁₋₈ alkyl, that is, —N—H(C₁₋₈ alkyl) or —N—(C₁₋₈ alkyl)₂, and may include, but is not limited to dimethlyamino, methylethylamino, methylpropylamino, or ethylpropylamino.

In the present specification, “aryl” may refer to an aromatic ring wherein one hydrogen has been removed from an aromatic hydrocarbon ring, and the aryl may be monocyclic or polycyclic. “An aryl of 3 to 12 atoms” may refer to an aryl which includes 3 to 12 ring-forming rings, and non-limiting examples of the same include phenyl, naphthyl, anthracenyl, phenanthryl, biphenyl, and terphenyl.

In the present specification, “heteroaryl” may refer to an aromatic ring which includes at least one heteroatom from among N, O and S as ring-forming atoms, and the heteroaryl may be monocyclic or polycyclic. Further, “heteroaryl of 3 to 12 atoms” may refer to a heteroaryl which includes 3 to 12 ring-forming rings, and non-limiting examples of the same include thienyl, thiophene, furyl, pyrrolyl, pyrazolyl, imidazolyl, thiazolyl, oxazolyl, isothiazolyl, oxadiazolyl, triazolyl, pyridinyl, bipyridyl, pyramidal, triazinyl, triazolyl, acridyl group, pyridazinyl group, pyrazinyl, quinolinyl, quinazoline, quinoxalinyl, phenoxazine, phthalazinyl, pyrimidinyl, pyrido pyrimidinyl, pyrido pyrazinyl, pyrazino pyrazinyl, isoquinoline, indole, carbazole, imidazopyridazinyl, imidazopyridinyl, imidazopyrimidinyl, pyrazolo pyrimidinyl, imidazo pyrazinyl or pyrazolo pyridinyl, N-aryl carbazole, N-heteroaryl carbazole, N-alkyl carbazole group, benzoxazole, benzoimidazole, benzothiazole, benzocarbazole, benzothiophene, dibenzothiophenyl, thienothiophene, benzofuranyl, phenanthroline, isoxazolyl, oxadiazolyl, thiadiazolyl, benzothiazolyl, tetrazolyl, phenothiazolyl, dibenzosilol or dibenzofuranyl, etc.

In the present invention, “hydroxy” may refer to —OH.

In the present specification, “carbonyl” may refer to —(C═(O))—, and may refer to a case wherein a cyclic alkyl, aryl or heterocycloalkyl is substituted by a carbonyl, or a case where a hydrogen atom is substituted by a (═O).

In the present specification, “alkylcarbonyl” may refer to —(C(═O)-alkyl), where the alkyl is as defined in the foregoing. Further, “C₁₋₈ alkylcarbonyl” may refer to a carbonyl which includes a C₁₋₃ alkyl, that is, —(C(═O)—C₁₋₈ alkyl), and non-limiting examples of these include methyl carbonyl (acetyl, —(C═(O)—CH₃)), ethyl carbonyl, n-propyl carbonyl, iso-propyl carbonyl, n-butyl carbonyl, sec-butyl carbonyl, isobutyl carbonyl, tert-butyl carbonyl, n-octyl carbonyl, cyclopropyl carbonyl, cyclobutyl carbonyl, cyclopentyl carbonyl, or cyclohexyl carbonyl.

In the present specification, “alkenyl” may refer to, unless otherwise stated, a noncyclic straight chain or branched chain or cyclic hydrocarbon having at least one double bond. Further, “C₂₋₈ alkenyl” may refer to an alkenyl which comprises two to eight carbon atoms, and may include, but is not limited to, ethenyl, 1-propenyl, prop-2-en-1-yl[—(CH₂CH═CH₂)](allyl), 2-butenyl, isopropenyl, 3-butenyl, 4-pentenyl, 5-hexenyl, 1-cyclohexenyl, cyclopentadienyl, 1,3-cyclohexadienyl, 1,4-cyclohexadienyl, 1,3-cycloheptadienyl, or 1,3,5-cycloheptatrienyl.

In the present specification, “alkenylcarbonyl” may refer to —(C(═O)-alkenyl), where alkenyl is as defined in the foregoing. Further, k “C₂₋₈ alkeylcarbonyl” may refer to a carbonyl which includes a C₂₋₈ alkenyl, that is, —(C(═O)—C₂₋₈ alkenyl).

In the present specification, “cyano” may refer to —(CN).

In the present specification, “alkynyl” may refer to a straight chain, branched chain noncyclic or cyclic hydrocarbon having at least one triple bond. Further, “C₂₋₈ alkynyl” may refer to an alkynyl which comprises 2 to 8 carbon atoms, and non-limiting examples of such include ethinyl, propynyl, hydroxypropynyl, butene-1-yl, butene-2-yl, pentene-1-yl, 3-methylbutene-1-yl, or hexyn-2-yl.

In the present specification, “aralkyl” may refer to -(alkyl-aryl), where alkyl and aryl are as defined in the foregoing. Further, “aralkyl of 3 to 8 atoms” may refer to an aralkyl which comprises 3 to 8 carbon atoms.

In the present specification, “bicycloalkyl” may mean, unless otherwise stated, a fused, spiro or bridged bicyclic hydrocarbon.

In the present specification, “diazabicycloalkyl” may refer to -(diazabicycloalkyl), that is, may represent a bicycloalkyl which includes two nitrogen atoms in the cycloalkyl. Non-limiting examples of diazabicycloalkyl include diazabicyclo[3,2,1]heptane, diazabicyclo[3,1,1]heptane, and diazabicyclo[2,2,1]heptane.

In the present specification, “oxazabicycloalkyl” may mean -(oxazabicycloalkyl), that is, a bicycloalkyl which comprises one oxygen atom and one nitrogen atom in the cycloalkyl. Non-limiting examples of oxazabicycloalkyl include oxazabicyclo[2,2,1]heptane.

In the present specification, “sulfonic acid ester” may refer to an alkyl sulfonic acid ester or an aryl sulfonic acid ester, where alkyl sulfonic acid ester is represented by —(OS(═O)₂-alkyl, and aryl sulfonic acid ester is represented by —(OS)═O₂-aryl). Here, alkyl and aryl are as defined in the foregoing.

In the present specification, “hydrate” may refer to the compound of the present invention or a salt thereof, comprising a stoichiometric or non-stoichiometric amount of water bonded by a non-covalent intermolecular force. A hydrate of the compound of the present invention represented by Chemical Formula 1 may comprise a stoichiometric or non-stoichiometric amount of water bonded by a non-covalent intermolecular force. The hydrate may comprise at least one equivalents of water, preferably one to five equivalents. Such hydrate may be prepared by crystallizing, from water or solvent comprising water, the compound of the present invention represented by Chemical Formula 1, isomers of the same, or pharmaceutically acceptable salts thereof.

In the present specification, “solvate” may refer to the compound of the present invention or a salt thereof, comprising a stoichiometric or non-stoichiometric amount of solvent which is bonded by a non-covalent intermolecular force. Preferred solvents include volatile solvents, non-volatile solvents, and/or solvents suitable for administration to humans.

In the present specification, the term “isomer” refers to the compound of the present invention or a salt thereof which has an identical chemical or molecular formula but which is structurally or three-dimensionally different. Included among such isomers are structural isomers such as tautomers, R or S isomers having asymmetric carbon centers, stereoisomers including geometric isomers (trans, cis), and enantiomers. All such isomers and compounds thereof are included in the scope of the present invention.

One aspect of the present invention provides a compound represented by Chemical Formula 1, stereoisomers of the same, hydrates or the same, or pharmaceutically acceptable salts of the same:

In one embodiment:

In Chemical Formula 1,

R¹ is hydrogen, halogen, C₁₋₈ alkyl, or C₁₋₈ alkoxy, where the C₁₋₈ alkyl and C₁₋₈ alkoxy of R¹ are, respectively and independently, substituted or unsubstituted by at least one halogen,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁷ and R⁸ are linked together with an N atom to which they are bonded to form a heterocycloalkyl or 3 to 12 atoms, where the C₁₋₈ alkyl or heterocycloalkyl of 3 to 12 atoms of R⁷ and R⁸ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of C₁₋₈ alkyl, C₁₋₈ alkoxy and C₁₋₈ alkylamino,

R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, halogen or C₁₋₈ alkyl, or the R⁹ and R¹⁰ are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyl, heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent R selected from among a group comprised of hydroxy, C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, C₁₋₈ alkylcarbonyl, —NR¹²R¹³, and heterocycloalkyl of 3 to 12 atoms, where the substituents R are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from a group comprised of halogen; carbonyl; C₁₋₈ alkyl substituted or unsubstituted by hydroxy or C₁₋₈ alkylamino; C₂₋₈ alkenyl; C₁₋₈ alkoxy; C₁₋₈ alkylamino; C₁₋₈ alkylcarbonyl; and, a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₈ alkyl, and where the R¹² and R¹³ are, respectively and independently, hydrogen, C₁₋₈ alkyl, C₂₋₈ alkenyl, C₁₋₈ alkylcarbonyl, C₂₋₈ alkenylcarbonyl, or a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₈ alkyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, where the R¹⁴, R¹⁵ and R¹⁶ are, respectively and independently, hydrogen, halogen, or C₁₋₃ alkyl substituted or unsubstituted by C₁₋₈ alkylamino,

R⁵ is a C₁₋₈ alkyl, an aryl of 3 to 12 atoms, a heteroaryl of 3 to 12 atoms, or a heterocycloalkyl of 3 to 12 atoms, and the C₁₋₈ alkyl, aryl of 3 to 12 atoms, heteroaryl of 3 to 12 atoms, or heterocycloalkyl of 3 to 12 atoms of R⁵ are, respectively and independently, halogen, cyano, a C₁₋₈ alkyl substituted or unsubstituted by halogen, an aryl of 3 to 12 atoms, a heteroaryl of 3 to 12 atoms, a heterocycloalkyl of 3 to 12 atoms, C₂₋₈ alkenyl, C₁₋₈ alkoxy, C₂₋₈ alkynyl and C₁₋₈ alkylamino, where each of the substituents J are, respectively and independently, halogen, C₁₋₈ alkyl substituted or unsubstituted by halogen, C₂₋₈ alkoxy, and C₁₋₈ alkylamino,

and R⁶ may be hydrogen or C₁₋₈ alkyl.

In another embodiment, in the compound represented by Chemical Formula 1,

R¹ is hydrogen, halogen, C₁₋₈ alkyl, or C₁₋₈ alkoxy, where the C₁₋₈ alkoxies of R¹ are, respectively and independently, substituted or unsubstituted by at least one halogen,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁷ and R⁸ are linked together with an N atom to which they are bonded to form a heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyl of R⁷ and R⁸ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of C₁₋₈ alkoxy and C₁₋₈ alkylamino, and the heterocycloalkyl of 3 to 12 atoms formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one substituent selected from among a group comprised of C₁₋₈ alkyl and C₁₋₈ alkoxy,

R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, halogen or C₁₋₈ alkyl, or the R⁹ and R¹⁰ are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms or a heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyls of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent R selected from among a group comprised of C₁₋₈ alkoxy, and C₁₋₈ alkylamino, where the heterocycloalkyl of 3 to 12 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(a) selected from among a group comprised of hydroxy, C₁₋₈ alkyl, C₈ alkoxy, C₁₋₈ alkylamino, C₁₋₈ alkylcarbonyl, —NR¹²R¹³, and heterocycloalkyl of 3 to 12 atoms, and the C₁₋₈ alkyl, C₁₋₈ alkylamino, and C₁₋₈ alkylcarbonyl of the substituent R^(a) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from a group comprised of C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, and heterocycloalkyl of 3 to 12 atoms, the heterocycloalkyl of 3 to 12 atoms of the substituent R^(a) is additionally substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen; carbonyl; C₁₋₈ alkyl substituted or unsubstituted by a hydroxy or a C₈ alkylamino; C₂₋₈ alkenyl; C₁₋₈ alkoxy; C₁₋₈ alkylamino; C₁₋₈ alkylcarbonyl; and, a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₈ alkyl, where the R¹² and R¹³ are, respectively and independently, hydrogen, C₁₋₈ alkylcarbonyl, C₂₋₈ alkenylcarbonyl, or a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₈ alkyl, heterocycloalkyl of 3 to 12 atoms, and the heteroaryl of 3 to 12 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₈ alkyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, where the R¹⁴ is hydrogen or halogen, and the R¹⁵ and R¹⁶ are, respectively and independently, hydrogen or C₁₋₈ alkyl substituted or unsubstituted by an alkylamino of C₁₋₈,

R⁵ is a C₁₋₈ alkyl substituted by a aryl of 3 to 12 atoms or a heteroaryl of 3 to 12 atoms; an aryl of 3 to 12 atoms; or a heteroaryl of 3 to 12 atoms, where the aryl of 3 to 12 atoms and the heteroaryl of 3 to 12 atoms of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of halogen, cyano, C₁₋₈ substituted or unsubstituted by halogen, C₁₋₈ alkoxy, and C₂₋₈ alkynyl, and aryl substituted with a aryl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms of R⁵ is substituted or unsubstituted by at least one substituent selected from a group comprised of halogen, C₁₋₈ alkyl substituted or unsubstituted by halogen, and C₁₋₈ alkylamino,

and R⁶ may be hydrogen or C₁₋₈ alkyl.

In yet another embodiment, in the compound represented by Chemical Formula 1,

R¹ is hydrogen, halogen, C₁₋₄ alkyl, or C₁₋₄ alkoxy, where the C₁₋₄ alkoxies of R¹ are, respectively and independently, substituted or unsubstituted by at least one halogen,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are linked, together with the N atoms to which they are bonded, to form a heterocycloalkyl of 3 to 8 atoms, where the heterocycloalkyl of 3 to 8 atoms formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one C₁₋₄ alkyl,

R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰, and R¹¹ are, respectively and independently C₁₋₆ alkyl, or R⁹ and R¹⁰ are linked together with the N atoms with which they are bonded to form a heterocycloalkyl of 3 to 10 atoms or heteroaryl of 3 to 8 atoms, the C₁₋₆ alkyls of R⁹, R¹⁰, and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from a group comprised of C₁₋₄ alkylamino and C₁₋₄ alkoxy, and the heterocycloalkyl of 3 to 10 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(b) selected from among a group comprised of hydroxy, C₁₋₆ alkyl, C₁₋₄, C₁₋₄ alkylamino, C₁₋₄ alkylcarbonyl, —NR¹²R¹³ and heterocycloalkyls of 3 to 10 atoms, the C₁₋₆ alkyl, C₁₋₄ alkoxy, and C₁₋₄ alkylamino of the substituent R^(b) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from among a group comprised of C₁₋₆ alkyl, C₁₋₄ alkoxy, and C₁₋₄alkylamino, the heterocycloalkyl of 3 to 10 atoms of substituent R^(b) is additionally substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen; carbonyl; C₁₋₆ alkyl substituted or unsubstituted by C₁₋₄ alkylamino; C₂₋₄ alkenyl; C₁₋₄ alkylamino; C₁₋₄ alkylcarbonyl; and, a heterocycloalkyl of 3 to 8 atoms substituted or unsubstituted by C₁₋₄ alkyl, R¹² and R¹³ are, respectively and independently, hydrogen, C₂₋₄ alkenyl carbonyl or heterocycloalkyl of 3 to 8 atoms substituted or unsubstituted by C₁₋₄ alkyl, the heteroaryl of 3 to 8 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₄ alkyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, R¹⁴ is hydrogen or halogen, and R¹⁵ and R¹⁶ are, respectively and independently, hydrogen or C₁₋₄ alkyl substituted by an alkylamino of C₁₋₄,

R⁵ is a C₁₋₄ alkyl; an aryl of 3 to 8 atoms; or a heteroaryl of 3 to 8 atoms substituted by an aryl of 3 to 8 atoms or heteroaryl of 3 to 8 atoms; the aryl of 3 to 8 atoms or heteroaryl of 3 to 8 atoms of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen, cyano, C₁₋₄ alkyl substituted or unsubstituted by halogen, C₁₋₄ alkoxy, and C₂₋₄ alkynyl, the C₁₋₄ alkyl substituted by a aryl of 3 to 8 atoms or heteroaryl of 3 to 8 atoms of R⁵ is substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen, C₁₋₄ alkyl substituted or unsubstituted by halogen, and C₁₋₄ alkylamino,

and R⁶ may be hydrogen or C₁₋₄ alkyl.

In another embodiment, in a compound represented by Chemical Formula 1,

R¹ is hydrogen, halogen, C₁₋₄ alkyl or C₁₋₄ alkoxy, where the C₁₋₄ alkoxy of R¹ is, respectively and independently, substituted or unsubstituted by at least one halogen,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 8 atoms having one or two N atoms, where the heterocycloalkyl of 3 to 8 atoms formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one C₁₋₄ alkyl,

R³ is hydrogen, —NR⁹R¹⁰, or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, C₁₋₆ alkyl, or R⁹ and R¹⁰ are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 10 atoms having one or two heteroatoms selected from a group comprised of N and O, or a heteroaryl of 3 to 8 atoms having one or two heteroatoms selected from a group comprised of N and O, the C₁₋₆ alkyl of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of C₁₋₄ alkylamino and C₁₋₄ alkoxy, the heterocycloalkyl of 3 to 8 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(c) selected from among a group comprised of a heterocycloalkyl of 3 to 10 atoms having one or two heteroatoms selected from among a group comprised of hydroxy, C₁₋₆ alkyl, C₁₋₄ alkoxy, C₁₋₄ alkylamino, C₁₋₄ carbonyl, —NR¹²R¹³, and heterocycloalkyl of 3 to 10 atoms having one or two heteroatoms selected from the group consisting of N and O, the C₁₋₆ alkyl, C₁₋₄ alkoxy and C₁₋₄ alkylamino of substituents R^(c) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from among C₁₋₆ alkyl, C₁₋₄ alkoxy and C₁₋₄ alkylamino, the heterocycloalkyl of 3 to 10 atoms of substituents R^(c) is substituted or unsubstituted by halogen; carbonyl; C₁₋₆ alkyl substituted or unsubstituted by C₁₋₄ alkylamino; C₂₋₄ alkenyl; C₁₋₄ alkylamino; C₁₋₄ alkylcarbonyl; and C₁₋₄ alkyl, and additionally substituted or unsubstituted by at least one substituent selected from among a group comprised of heterocycloalkyl of 3 to 8 atoms having one or two heteroatoms selected from a group comprised of N and O, R¹² and R¹³ are, respectively and independently, substituted or unsubstituted by hydrogen, C₂₋₄ alkenylcarbonyl or C₁₋₄ alkyl, are heterocycloalkyl of 3 to 8 atoms having one or two N atoms, the heteroaryl of 3 to 8 atoms formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₄ alkyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, R¹⁴ is hydrogen or halogen, and R¹⁵ and R¹⁶ are, respectively and independently, C₁₋₄ alkyl substituted by hydrogen or C₁₋₄ alkylamino,

R⁵ is a C₁₋₄ alkyl substituted by a aryl of 3 to 8 atoms or heteroaryl of 3 to 8 atoms; aryl of 3 to 8 atoms; or heteroaryl of 3 to 8 atoms, the aryl of 3 to 8 atoms or heteroaryl of 3 to 8 atoms of R⁵ is, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen, cyano, C₁₋₄ alkyl substituted or unsubstituted by halogen, C₁₋₄ alkoxy, and C₂₋₄ alkynyl, the C₁₋₄ substituted by a aryl of 3 to 8 atoms or a heteroaryl of 3 to 8 atoms of R⁵ is substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen, C₁₋₄ alkyl substituted or unsubstituted by halogen, and C₁₋₄ alkylamino,

and R⁶ may be hydrogen or C₁₋₄ alkyl.

In yet another embodiment, in a compound represented by Chemical Formula 1,

R¹ is hydrogen, fluoro, chloro, methyl, ethyl, methoxy, ethoxy or propoxy, where the methoxy, ethoxy, or propoxy of R¹ is, respectively and independently, substituted or unsubstituted by at least one fluoro or chloro,

R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are linked together with an N atom to which they are bonded to form azetidine, pyrrolidine, piperazine, piperidine or diazepane, the azetidine, pyrrolidine, piperazine, piperidine or diazepane formed by the bonding of R⁷ and R⁸ substituted or unsubstituted by at least one methyl or ethyl,

R³ is hydrogen, —NR⁹R¹⁰, or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, methyl, ethyl, propyl, butyl or pentyl, or R⁹ and R¹⁰ are linked, together with an N atom to which they are bonded, form an azetidine, pyrrolidine, piperazine, piperidine, diazepane, morpholine, diazabicycloheptane, oxazabicycloheptane, diazabicyclooctane, oxazabicylooctane, imidazole, pyrrole, hexahydropyrrolopyrrole or tetrahydropuropyrrole, the methyl, ethyl, propyl, butyl or pentyl of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of dimethylamino, diethylamino, methylethylamino, methylpropylamino, ethylpropylamino, methoxy or ethoxy, the azetidine, pyrrolidine, piperazine, piperidine, diazepane, morpholine, diazabicycloheptane, oxazabicycloheptane, diazabicyclooctane, oxazabicylooctane, imidazole, pyrrole, hexahydropyrrolopyrrole or tetrahydropuropyrrole formed by the bonding of R⁹ and R¹⁰ are, respectively and independently, substituted or unsubstituted by at least one substituent R^(d) selected from among a group comprised of hydroxy, methyl, ethyl, propyl, butyl, cyclopropyl, cyclobutyl, cyclopentyl, methoxy, ethoxy, dimethylamino, diethylamino, methylethylamino, methylpropylamino, ethylpropylamino, acetyl, azetidine, pyrrolidine, piperazine, piperidine, diazepane, morpholine, oxetane, diazabicycloheptane, oxazabicycloheptane, diazabicyclooctane, oxazabicyclooctane, oxazaspiroheptane, azaspirooctane, hexahydropyrrolopirazine, and —NR¹²R¹³, the methyl, ethyl, propyl, butyl, cyclopropyl, cyclobutyl, cyclopentyl, methoxy, ethoxy, dimethylamino, diethylamino, methylethylamino, methylpropylamino or ethylpropylamino of the substituents R^(d) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from a group comprised of cyclopropyl, cyclobutyl, methoxy, ethoxy, methylamino, diethylamino and methylethylamino, the azetidine, pyrrolidine, piperazine, piperidine, diazepane, morpholine, oxetane, diazabicycloheptane, oxazabicycloheptane, diazabicyclooctane, oxazabicyclooctane, oxazaspiroheptane, azaspirooctane or hexahydropyrrolopirazine of the substituents R^(d) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from a group comprised of fluoro, chloro, carbonyl, methyl, ethyl, propyl, butyl, cyclopropyl, cyclobutyl, cyclopentyl, methyl substituted by dimethylamino, methyl substituted by diethylamino, ethyl substituted by diethylamino, ethenyl, propenyl, butenyl, dimethylamino, diethylamino, methylethylamino, methylpropylamino, ethylpropylamino, acetyl, azetidine substituted or unsubstituted by methyl or ethyl, pyrrolidine substituted or unsubstituted by methyl or ethyl, piperazine substituted or unsubstituted by methyl or ethyl, piperidine substituted or unsubstituted by methyl or ethyl, diazepane substituted or unsubstituted by methyl or ethyl, morpholine substituted or unsubstituted by methyl or ethyl, and oxetane substituted or unsubstituted by methyl or ethyl, R¹² is, respectively and independently, hydrogen or prop-2-en-1-on, R¹³ is azetidine substituted or unsubstituted by methyl, ethyl or propyl; pyrrolidine substituted or unsubstituted by methyl, ethyl or propyl; or piperidine substituted or unsubstituted by methyl, ethyl or propyl, the imidazole or pyrrole formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by methyl or ethyl,

R⁴ is —NH(C═O)R¹⁴C═CR¹⁵R¹⁶, R¹⁴ is hydrogen, fluoro or chloro, R¹⁵ and R¹⁶ are, respectively and independently, hydrogen; methyl substituted by dimethylamino or diethylamino; or ethyl substituted by dimethylamino or diethylamino,

R⁵ is methyl substituted by phenyl, naphthyl, pyridine or pyrrole; ethyl substituted by phenyl, naphthyl, pyridine or pyrrole; phenyl; naphthyl; pyrrole; pyridine; or thiophene, the phenyl, naphthyl, pyrrole, pyridine or thiophene of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of fluoro; chloro; cyano; methyl substituted or unsubstituted by fluoro or chloro; ethyl substituted or unsubstituted by fluoro or chloro; methoxy; ethoxy; and ethinyl, the phenyl, naphthyl, pyridine or pyrrole which is the substituent of the methyl or ethyl of R⁵ is, respectively and respectively, substituted or unsubstituted by at least one substituent selected from among a group comprised of fluoro; chloro; methyl substituted or unsubstituted by fluoro or chloro; ethyl substituted or unsubstituted by fluoro or chloro; dimethylamino; and diethylamino,

and R⁶ may be hydrogen, methyl or ethyl.

In another embodiment,

A compound represented by Chemical Formula 2, stereoisomers of the same, or pharmaceutically acceptable salts of the same are provided.

Where, in Chemical Formula 2,

R¹ is hydrogen or C₁₋₄ alkoxy, R³ is —X—Y—Z, where X and Y are, respectively and independently, single bonds or heterocycloalkyl of 3 to 8 atoms comprising at least one N atom, and Z is —NR¹⁷R¹⁸ or is represented by Chemical Formula 3,

Where, in a case where Z is —NR¹⁷R¹⁸, at least one of X and Y is the heterocycloalkyl of 3 to 8 atoms comprising at least one N atom, where R¹⁷ and R¹⁸ are, respectively and independently, a C₁₋₄ alkyl substituted or unsubstituted by hydrogen or C₁₋₄ alkylamino, or are linked together with an N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms,

In a case where Z is Chemical Formula 3, L is an alkylene substituted or unsubstituted by C₁₋₄ alkyl, M is —NR¹⁹ or —O—, T and Q are, respectively and independently, C₁₋₄ alkyl substituted or unsubstituted by hydrogen or C₁₋₄ alkylamino; T and Q are linked to each other to form a heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by C₁₋₄ alkyl; or T and Q are linked to each other, with additional links between at least two different atoms forming a ring, to form a bridged or fused heterocycloalkyl of 3 to 12 atoms substituted or unsubstituted by a C₁₋₄ alkyl, R¹⁹ is hydrogen, C₁₋₆ alkyl, C₁₋₆ alkenyl, C₁₋₆ alkylcarbonyl, C₁₋₄ alkylamino, or a 3 to 8 atom heterocycloalkyl,

R⁵ is a aralkyl of 3 to 8 atoms, aryl of 3 to 8 atoms, or heteroaryl of 3 to 8 atoms, where the aralkyl of 3 to 8 atoms, aryl of 3 to 8 atoms, or heteroaryl of 3 to 8 atoms of R⁵ may be, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of halogen, cyano, C₁₋₄ alkyl, and C₁₋₄ alkoxy.

In another embodiment,

In the compound represented by Chemical Formula 2, R¹ may be hydrogen, methoxy, or ethoxy.

In another embodiment, in the compound represented by Chemical Formula 2,

R¹ and R⁵ are as defined in Chemical Formula 2,

R³ is —X—Y—Z, where X and Y are, respectively and independently, a single bond, azetidine, pyrrolidine, piperidine or piperazine, and Z is represented by —NR¹⁷R¹⁸ or Chemical Formula 3,

Where, in a case where Z is —NR¹⁷R¹⁸, at least one of X and Y is azetidine, pyrrolidine, piperidine or piperazine, where R¹⁷ and R¹⁸ are, respectively and independently methyl or ethyl, or are linked together with an N atom to which they are bonded to be azaspiroctane,

In a case where Z is Chemical Formula 3, L is methylene, ethylene, propylene or butylene substituted or unsubstituted by methyl or ethyl,

M is —NR¹⁹ or —O—, and T and Q are, respectively and independently, methyl or ethyl substituted or unsubstituted by dimethyl amino; M is —NR¹⁹, and T and Q are linked to each other to form a piperazine substituted or unsubstituted by methyl or ethyl; M is —NR¹⁹, and T and Q are linked together, with additional links between at least two different atoms among the atoms forming the ring, forming a 6 to 8 atom diazabicycloalkyl substituted or unsubstituted by methyl or ethyl; M is —O—, and T and Q are linked together, forming a morpholine substituted or unsubstituted by methyl or ethyl; or M is —O—, and T and Q are linked together, with additional links between at least two different atoms among the atoms forming the ring, forming a 6 to 8 atom oxazabicycloalkyl substituted or unsubstituted by methyl or ethyl,

and R¹⁹ may be methyl, ethyl, propyl, cyclopropyl, cyclopropylmethyl, cyclobutyl, cyclopentyl, prop-2-en-1-yl, acetyl, dimethylamino, or oxetane.

In yet another embodiment,

In the compound represented by Chemical Formula 2, R⁵ is phenyl, benzyl, pyridine or thiophene, and the phenyl, benzyl, pyridine or thiophene may be, respectively and independently, substituted or unsubstituted by at least one substituent selected from among a group comprised of fluoro, chloro, cyano, methyl substituted or unsubstituted by at least one fluoro, and methoxy.

In another embodiment, in a compound represented by Chemical Formula 2,

R⁵ is as defined in Chemical Formula 2,

R¹ is hydrogen or methoxy, R³ is —X—Y—Z, where X and Y are, respectively and independently, single bonds, pyrrolidine or piperidine, and Z is dimethylamino, azaspirooctane, or represented by Chemical Formula 3,

Where, in a case where Z is dimethylamino or azaspirooctane, at least one of X and Y is pyrrolidine or piperidine,

In a case where Z is Chemical Formula 3 and X and Y are single bonds, Chemical Formula 3 is piperazine, morpholine, methylethylamino, hexahydropyrrolopyrrole, or tetrahydropuropyrrole substituted or unsubstituted by at least one substituent selected from among a group comprised of methyl, ethyl, propyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclopropylmethyl, and dimethylamino,

In a case where Z is Chemical Formula 3 and at least one of X and Y is pyrrolidine or piperidine, Chemical Formula 3 may be piperazine, morpholine, diazabicycloheptane, oxazabicycloheptane, hexahydropyrrolopyrrole, or tetrahydropuropyrrole substituted or unsubstituted by at least one substituent selected from among a group comprised of methyl, ethyl, propyl, oxetane, cyclopropyl, cyclobutyl, cyclopentyl, cyclopropylmethyl, acetyl and dimethylamino.

In yet another embodiment, in a compound represented by Chemical Formula 1,

R¹ may be hydrogen, fluoro, chloro, methyl, ethyl, methoxy, ethoxy, propoxy, or

R² may be hydrogen or

R³ may be hydrogen,

R⁴ may be

R⁵ may be

In another embodiment,

The compound represented by Chemical Formula 1 may be any one of Example Compounds 1 through 1059 listed in [Table 1] below.

The compound represented by Chemical Formula 1 of the present invention may be used in the form of pharmaceutically acceptable salts thereof. In particular, the pharmaceutically acceptable salt may be an acid addition salt formed by a free acid. Here, the acid addition salt may be obtained from inorganic acids, such as hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, nitrous acid, phosphorous acid and the like, nontoxic organic acids, such as aliphatic mono- and dicarboxylate, phenyl-substituted alkanoate, hydroxy alkanoate and alkanthioate, aromatic acids, aliphatic and aromatic sulfonic acids and the like, organic acids, such as acetate, benzoic acid, citric acid, lactic acid, maleic acid, gluconic acid, methanesulfonic acid, 4-toluenesulfonic acid, tartaric acid, fumaric acid and the like. Types of such pharmaceutically acceptable salts include sulfate, pyrosulfate, bisulfate, sulfite, bisulfite, nitrate, phosphate, monohydrogen phosphate, dihydrogen phosphate, metaphosphate, pyrophosphate chloride, bromide, iodide, fluoride, acetate, propionate, decanoate, caprylate, acrylate, formate, isobutyrate, caprate, heptanoate, propiolate, oxalate, malonate, succinate, suberate, sebacate, fumarate, maleate, butyne-1,4-dioate, hexane-1,6-dioate, benzoate, chlorobenzoate, methylbenzoate, dinitrobenzoate, hydroxybenzoate, methoxybenzoate, phthalate, terephthalate, benzene sulfonate, toluene sulfonate, chlorobenzene sulfonate, xylene sulfonate, phenylacetate, phenylpropionate, phenylbutyrate, citrate, lactate, p-hydroxybutyrate, glycolate, malate, tartrate, methane sulfonate, propane sulfonate, naphthalene-1-sulfonate, naphthalene-2-sulfonate, mandelate and the like. The acid addition salt may be prepared using a conventional method, for example, by dissolving the derivative of Formula 1 in an organic solvent, such as methanol, ethanol, acetone, methylene chloride, acetonitrile and the like, adding an organic acid or an inorganic acid, filtering the resulting precipitate, and drying, or it may be prepared by distilling a solvent and an acid in excess amount under reduced pressure, then drying, and crystallizing under an organic solvent. Further, the pharmaceutically acceptable salt may be a salt or metal salt obtained using a base. As an example of a metal salt, an alkali metal or alkaline earth metal salt may be obtained, for example, by dissolving the compound in surplus alkali metal hydroxide or alkaline earth metal hydroxide solution, filtering the undissolved compound salt, evaporating the filtrate, and drying. Pharmaceutically suitable alkali metal salts may be sodium, potassium or calcium. In addition, the corresponding salt may be obtained by reacting an alkali metal or alkaline earth metal salt with an appropriate silver salt (for example, silver nitrate).

Further, the present invention may be, not only the compound represented by Chemical Formula 1 and pharmaceutically acceptable salts thereof, but also stereoisomers, in particular, enantiomers of the same and hydrates and/or solvates which may be prepared from the same.

Another aspect of the present invention may provide a method for preparing the compound of Chemical Formula 1.

The method for preparing the compound of Chemical Formula 1 may comprise:

A step of preparing a compound of Chemical Formula 5 from a compound of Chemical Formula 4;

A step of preparing a compound of Chemical Formula 6 from the compound of Chemical Formula 5; and,

A step of preparing the compound of Chemical Formula 1 from the compound of Chemical Formula 6.

In Chemical Formula 4, G is a leaving group, and R¹ and R⁶ are respectively the same as defined in the above. The leaving group may be a functional group such as halogen, sulfonic acid ester or alkoxy, and there is no particular limitation on the functional group so long as it is a functional group where the leaving group can leave from the compound of Chemical Formula 4 to prepare the compound of Chemical Formula 5.

The step of preparing the compound of Chemical Formula 5 from the compound of Chemical Formula 4 may be a step wherein the compound of Chemical Formula 4 reacts with R³—H. The reaction may be carried out in solvent such as dimethylsulfoxide (DMSO). The reaction temperature may be approximately 40 to 100° C., the reaction time may be 90 to 150 minutes, and conditions may not be limited to the above so long as they allow the reaction to carry on smoothly.

Meanwhile, the step of preparing the compound of Chemical Formula 5 from the compound of Chemical Formula 4 may be a step wherein a step of reacting the compound of Chemical Formula 4 with a heterocycloalkyl such as piperidinone is carried out, and then a step of reacting with R³—H is carried out.

The step of preparing the compound of Chemical Formula 6 from the compound of Chemical Formula 5 may be a step of reducing nitro groups existing in a para position from R¹, in a meta position from R², and in an ortho position from R³. In particular, the step may be a step wherein only the nitro groups are reduced, without reducing other functional groups or compounds. Any reducing agent may be used without limitation so long as it is a reducing agent which reduces nitro groups, and for example, SnCl₂ may be used.

The step of preparing the compound of Chemical Formula 1 from the compound of Chemical Formula 6 may be a step wherein the compound of Chemical Formula 6 reacts with acrylic acid or acryl halide.

Further, the compound of Chemical Formula 4 may be a compound prepared through a step of preparing a compound of Chemical Formula 8 from a compound of Chemical Formula 7; and, a step of preparing the compound of Chemical Formula 4 from the compound of Chemical Formula 8.

In Chemical Formula 7 or Chemical Formula 8 above, G is, respectively and independently, a leaving group, and R⁵ and R⁶ may respectively be the same as defined in the present specification. The leaving group may be a functional group such as halogen, sulfonic acid, ester or alkoxy, and there is no particular limitation on the functional group so long as the compound of Chemical Formula 8 can be prepared from the compound of Chemical Formula 7, and the compound of Chemical Formula 4 can be prepared from the compound of Chemical Formula 8.

The step of preparing the compound of Chemical Formula 8 from the compound of Chemical Formula 7 may be performed in a solvent such as dimethylsulfoxide (DMSO). The reaction temperature may be approximately 60 to 120° C., the reaction time may be approximately 30 to 90 minutes, and there is no particular limitation on the above conditions so long as they allow for the reaction(s) to carry out smoothly.

In the case of the step of preparing the compound of Chemical Formula 4 from the compound of Chemical Formula 8, the reaction temperature may be approximately 80 to 120° C., the reaction time may be approximately 45 to 90 minutes, and there is no particular limitation on the above conditions so long as they allow for the reaction(s) to carry out smoothly.

Yet another aspect of the present invention may provide:

A pharmaceutical composition for preventing or treating cancer, the composition comprising the compound of Chemical Formula 1, stereoisomers of the same, hydrates of the same or pharmaceutically acceptable salts of the same as an effective component.

The compound of Chemical Formula 1 may exhibit inhibitory activity against EGFR (epidermal growth factor receptor) mutants and ERBB2 and ERBB4. In other words, the compound of Chemical Formula 1 can inhibit EGFR (epidermal growth factor receptor) mutants, or wild type or mutant kinases of one of ERBB2 and ERBB4.

The EGFR mutant may be at least one selected from among a group comprised of EGFR Del19/T790M, EGFR L858R/T790M, EGFR L858R, EGFR Exon20 ins NPH, EGFR Exon20 ins SVD, EGFR Exon20 ins FQEA, EGFR Exon20 ins H, and EGFR Exon20 ins ASV.

The ERBB2 mutant may be Her2 Exon20 ins YVMA.

Whereas there is no limitation on the type of cancer, the cancer may be one or more selected from a group comprised of pseudomyxoma, intrahepatic cholangiocarcinoma, hepatoblastoma, liver cancer, thyroid cancer, colon cancer, testis cancer, myelodysplastic syndrome, glioblastoma, oral cancer, lip cancer, mycosis fungoides, acute myeloid leukemia, acute lymphocytic leukemia, basal cell carcinoma, epithelial ovarian cancer, ovarian seminoma, male breast cancer, brain cancer, pituitary adenoma, multiple myeloma, gallbladder cancer, cholangiocarcinoma, colorectal cancer, chronic myeloid leukemia, chronic lymphocytic leukemia, retinoblastoma, choroidal melanoma, ampullar of Vater cancer, bladder cancer, peritoneal cancer, parathyroid cancer, adrenal cancer, nasal and paranasal cavity cancer, non-small cell lung cancer, tongue cancer, astrocytoma, small cell lung cancer, pediatric brain cancer, pediatric lymphoma, pediatric leukemia, small intestine cancer, meningioma, esophageal cancer, glioma, renal pelvis cancer, renal cancer, heart cancer, duodenal cancer, malignant soft tissue cancer, malignant bone cancer, malignant lymphoma, malignant mesothelioma, malignant melanoma, eye cancer, vulvar cancer, ureteral cancer, urethral cancer, cancer of unknown primary site, gastric lymphoma, gastric cancer, gastric carcinoid, gastrointestinal stromal tumor, Wilms' tumor, breast cancer, sarcoma, penile cancer, pharyngeal cancer, gestational choriocarcinoma, cervical cancer, endometrial cancer, uterine sarcoma, prostate cancer, metastatic bone cancer, metastatic brain cancer, mediastinal cancer, rectal cancer, rectal carcinoid, vaginal cancer, spinal cancer, vestibular schwannoma, pancreatic cancer, salivary gland cancer, Kaposi's sarcoma, Paget's disease, tonsillar cancer, squamous cell cancer, adenocarcinoma of lung, lung cancer, squamous cell lung cancer, skin cancer, anal cancer, rhabdomyosarcoma, laryngeal cancer, pleura cancer, hematologic malignancy, and thymic cancer.

The pharmaceutical composition for preventing or treating cancer according to the present invention may be used for clinical administration, and may be prepared for administration as a variety of oral and non-oral dosage forms.

The pharmaceutical composition of the present invention may comprise pharmaceutically acceptable carriers. Examples of such pharmaceutically acceptable carriers include filling agents, bulking agents, binding agents, wetting agents, disintegrating agents, diluents such as surfactants or excipients, and the composition of the present invention may be formulated together with these.

Solid formulations for oral administration may include tablets, pills, powders, granules and capsules, etc., and such solid formulations may be formulated by mixing, with at least one compound, at least one excipient, for example, starch, calcium carbonate, sucrose, lactose or gelatin, etc. Further, in addition to simple excipients, lubricants such as magnesium stearate or talc may be used in formulation.

Liquid formulations for oral administration may include a suspension, a solution, an emulsion and a syrup, etc. In addition to water commonly used as a simple diluent and liquid paraffin, various excipients, for example, wetting agents, sweetening agents, flavors, preservatives, etc. may be included.

Formulations for non-oral administration include sterilized aqueous solutions, non-aqueous solvents, suspending agents, emulsions, freeze-drying agents, suppositories, etc. Propylene glycol, polyethylene glycol, vegetable oils such as olive oil, injectable esters such as ethyl oleate, etc. may be used as non-aqueous solvents and suspending agents.

Further, non-oral administration may be performed using methods such as subcutaneous injection, intravenous injection, intramuscular injection or intrathoracic injection. Here, for formulation into a dosage form for non-oral administration, the pharmaceutical composition may be prepared by mixing the compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt thereof into water together with a stabilizer or buffer to prepare a solution or suspension, which is then prepared into ampoule or vial type unit doses. The composition is/may be sterilized, may contain preservatives, stabilizing agents, wetting agents or emulsifying agents, salts for osmoregulation, and/or adjuvants such as buffer agents, as well as other therapeutically useful substances, and may be formulated using ordinary mixing, granulation or coating methods.

In the following, the present invention will be explained in detail through embodiments and experimental examples. Provided, that the following embodiments and experimental examples are meant only to exemplify the present invention, and the scope of the present invention is not limited to these.

<Conditions for Analysis and Purification>

The compounds synthesized in the embodiments of the present invention were purified or structurally analyzed according to the following HPLC conditions.

1. Analytical HPLC Conditions

Analytical HPLC Conditions (ACQUITY UPLC H-Class Core System)

A UPLC system (ACQUITY UPLC PDA Detector) manufactured by Waters, equipped with a Waters-manufactured mass QDA Detector was used. The column used was the Waters ACQUITY UPLC® BEH C18 (1.7 μm, 2.1×50 mm), and a column temperature of 30° C. was used.

Water containing 0.1% formic acid was used as mobile phase A, and acetonitrile containing 0.1% formic acid was used as mobile phase B.

Gradient condition (3 minutes with 10-100% B, speed=0.6 ml/min)

Pre-LCMS (Preparative-Liquid Chromatography Mass Spectrometry) for Purification

An autopurification HPLC system (2767 sample manager, 2545 binary gradient module, 2998 photodiode array detector) manufactured by Waters equipped with a Waster-manufactured mass QDA detector was used. The column used was the Waters SunFire® Prep C18 OBD™ (5 μm, 19×50 mm), and the column was carried out at room temperature.

Water containing 0.035% trifluoroacetic acid was used as mobile phase A, and methanol containing 0.035% trifluoroacetic acid was used as mobile phase B.

Gradient condition (10 minutes with 15-100% B, speed=25 ml/min)

Prep-150LC System for Purification (Preparative-Liquid Chromatography UV Spectrometry)

A Prep 150 LC system (2545 quaternary gradient module, 2998 photodiode array detector, Fraction collector²) manufactured by Waters was used. The column used was the Waters XTERRA® Prep RP18 OBD™ (10 μm, 30×300 mm), and the column was carried out at room temperature.

Gradient condition (120 minutes with 3-100% B, speed=40 ml/min)

2. NMR Analysis

NMR analysis was carried out using the AVANCE III 400 or AVANCE III 400 HD manufactured by Bruker, and data was presented in ppm (parts per million (δ)).

The commercially available reagent used was used without additional purification. In the present invention, room temperature refers to a temperature of about 5° C. to 40° C., 10° C. to 30° C. in one example, and 20° C. to 27° C. in another example, but is not limited to within these ranges. For concentration under pressure and removal of solvent through distillation, a rotary evaporator was used.

PREPARATION EXAMPLES 1. Preparation of Isoxazolidine Derivatives <Preparation Example 1> Preparation of (S)-3-phenylisoxazolidine

Step 1: Preparation of tert-butyl(R)-(3-hydroxy-3-phenylpropoxy)carbamate

tert-butyl hydroxycarbamate (7.8 g, 58.6 mmol) was dissolved in dimethylformamide (140 ml), then sodium hydride (2.58 g, 64.5 mmol) was added at 0° C. and reacted for 30 minutes. Then (R)-3-chloro-1-phenylpropane-1-ol (5 g, 29.3 mmol) dissolved in dimethylformamide (10 ml) was slowly added dropwise over 10 minutes at 0° C., and agitated for 72 hours at room temperature. Aqueous solution of ammonium chloride was added to the reaction mixture to end the reaction, then extraction was performed using ethyl acetate and salt water. The organic layers were added. The organic layer was dried using sodium sulfate and concentrated, then purified with medium pressure liquid chromatography (ethyl acetate/n-hexane) to obtain the target compound tert-butyl(R)-(3-hydroxy-3-phenylpropoxy)carbamate (2.8 g, 68%).

MS (m/z): 150.17 [M+1]+, UPLC r. t. (min): 1.51

Step 2: Preparation of tert-butyl(S)-3-phenylisoxazolidine-2-carboxylate

The tert-butyl(R)-(3-hydroxy-3-phenylpropoxy)carbamate (2.55 g, 94.54 mmol) obtained in Step 1 of Preparation Example 1 above and triethylamine (3.13 ml, 22.44 mmol) were dissolved in dichloromethane (250 ml) and chilled to 0° C. Methanesulfonyl chloride (1 ml, 13 mmol) was added dropwise, then reacted for 2 hours at 0° C. The reaction mixture was extracted with salt water and dichloromethane, and the organic layers were added. The organic layer was dried using sodium sulfate, then vacuum concentrated to obtain the target compound tert-butyl-3-phenylisoxazolidine-2-carboxylate, which was used in the next reaction without purification.

MS (m/z): 194.13 [M+1]+, UPLC r. t. (min): 1.69

Step 3: Preparation of (S)-3-phenylisoxazolidine

The tert-butyl-3-phenylisoxazolidine-2-carboxylate (2.3 g) obtained in Step 2 of Preparation Example 1 above was dissolved in dichloromethane (90 ml), then trifluoroacetic acid (14 ml) was added and reacted for 1 hour at room temperature. The reaction mixture was neutralized with an aqueous solution of sodium bicarbonate, and the organic layers were added. The organic layer was dried using sodium sulfate and vacuum concentrated and purified using medium pressure liquid chromatography (tetrahydrofuran/n-hexane) to obtain the target compound 3-phenylisoxazolidine (1.3 g, 94%).

MS (m/z): 150.08 [M+1]+, UPLC r. t. (min): 0.72

<Preparation Example 2> Preparation of (R)-3-phenylisoxazolidine

Preparation Example 2 was prepared using method similar to that of Preparation Example 1, and was used in the synthesis of the Example Compounds listed in [Table 1].

MS (m/z): 150.08 [M+1]+, UPLC r. t. (min): 0.72

<Preparation Example 3> Preparation of (R)-3-(3-fluorophenyl)isoxazolidine

Step 1: Preparation of 3-fluoro-N-methoxy-N-methylbenzamide

3-fluorobenzoic acid (90 g, 642.35 mmol, 1 eq) was dissolved in pyrimidine (150 mL, then N-methoxy methanamine (75.19 g, 770.81 mmol, 1.2 eq, HCl) was added. Thereafter, 1-ethyl-3-(-3-dimethylaminopropyl)carbodiimide (EDCI; 147.77 g, 770.81 mmol. 1.2 eq) was added at 15° C. The reaction mixture was agitated for 30 minutes at 50° C. TLC analysis (PE:EA=3:1) results showed that all of the starting material had disappeared, and new spots with low polarity were detected. Vacuum concentration was performed to remove the pyridine solvent, and dichloromethane (DCM; 500 mL), hydrochloric acid (500 mL, 2N) and salt water (200 mL) were used to extract the organic layer. The organic layer was dried using sodium sulfate and vacuum concentrated to obtain the target compound 3-fluoro-N-methoxy-N-methylbenzamide (110 g, 600.50 mmol, 93.49% yield) in the form of a yellow oil.

1H NMR (400 MHz, CHLOROFORM-d) δ ppm 7.47-7.40 (m, 1H), 7.39-7.38 (m, 2H), 7.14-7.13 (m, 1H), 3.54 (s, 3H), 3.45 (s, 3H)

Step 2: Preparation of 1-(3-fluorophenyl)prop-2-en-1-one

The 3-fluoro-N-methoxy-N-methylbenzamide (110 g, 600.50 mmol, 1 eq) obtained in Step 1 of Preparation Example 3 was dissolved in tetrahydrofuran (THF; 1 L), and then at 0° C., bromo(vinyl)magnesium (1M, 630.53 mL, 1.05 eq) was added dropwise at 78° C. Then, the reaction mixture was agitated for 30 minutes at 0° C. TLC analysis (PE:EA=4:1) results showed that all of the starting material had disappeared, and new spots having low polarity were detected. Hydrochloric acid (4N, 500 mL) was added to end the reaction, and the organic layer was extracted using methyl tert-butyl ether (MTBE; 2000 mL) and salt water (500 mL). The organic layer was dried using sodium sulfate, then vacuum concentrated. The concentrated compound was purified using chromatography (petroleum ether/ethyl acetate=30/1) to obtain the target compound 1-3-fluorophenyl)prop-2-en-1-one (80 g, 532.80 mmol, 88.73% yield) in the form of a yellow oil.

1H NMR (400 MHz, CHLOROFORM-d) δ ppm 7.65 (m, 1H), 7.58-7.52 (m, 1H), 7.39 (m, 1H), 7.24-7.17 (m, 1H), 7.04 (dd, J=17.2, 10.4 Hz, 1H), 6.39 (dd, J=17.2, 1.6 Hz, 1H), 5.90 (dd, J=10.4, 1.6 Hz, 1H)

Step 3: Preparation of 3-chloro-1-(3-fluorophenyl)propan-1-one

The 1-3-fluorophenyl)prop-2-en-1-one (71 g, 472.86 mmol, 1.0 eq) obtained in Step 2 of Preparation Example 3 was dissolved in dichloromethane (DCM; 71 mL), then HCl/dioxane (4M, 295.54 mL, 2.5 eq) was added at 0° C. Then, the reaction mixture was agitated for 1.5 hours at 15° C. TLC analysis (PE:EA=10:1) results showed that all the starting material disappeared, and the target compound was detected. The reaction mixture was concentrated under vacuum, then dichloromethane (DCM; 450 mL) and water (200 mL*5) was added to extract the organic layer, which was dried using sodium sulfate and vacuum concentrated to obtain the target compound 3-chloro-1-(3-fluorophenyl)propan-1-one (73 g, 391.19 mmol. 82.73% yield) in the form of a yellow solid.

1H NMR (400 MHz, CHLOROFORM-d) 6=7.78-7.72 (m, 1H), 7.69-7.60 (m, 1H), 7.53-7.44 (m, 1H), 7.37-7.24 (m, 1H), 3.93 (t, J=6.8 Hz, 2H), 3.46 (t, J=6.8 Hz, 2H)

Step 4: Preparation of (S)-3-chloro-1-(3-fluorophenyl)propan-1-ol

(3aR)-1-methyl-3,3-diphenyl-3a,4,5,6-tetrahydropyrrolo[1,2-c][1,3,2]oxazaborol (1M, 32.15 mL, 0.1 eq) was dissolved in tetrahydrofuran (THF; 1.2 L), then borane tetrahydrofuran (BH₃THF; 1M, 186.48 mL, 0.6 eq) was added dropwise at 0° C. in a nitrogen atmosphere. The reaction mixture was agitated for 30 minutes at 0° C. Thereafter, the 3-chloro-1-(3-fluorophenyl)propan-1-one obtained in Step 3 of Preparation Example 3 (60 g, 309.02 mmol, 1 eq) diluted in tetrahydrofuran was added dropwise at 0° C. to the reaction mixture. TLC analysis (PE:EA=5:1) results showed that all of the starting material had disappeared, with spots of the target compound detected. The reaction was ended by adding methanol (100 mL) at 0° C., and the solvent was allowed to volatilize in vacuum. The organic layer was extracted from the concentrated compound using dichloromethane (DCM; 100 mL*3) and ammonium chloride (NH₄Cl) solution (300 mL). The organic layer was dried using sodium sulfate and vacuum concentrated. The concentrated compound was purified using silica gel chromatography (PE:EA=50:1 to 5:1) to obtain (3)-3-chloro-1-(3-fluorophenyl)propan-1-ol (140 g, 664.2 mmol, 71.65% yield, 89.49% purity, 65.5% e.e) as a colorless oil.

1H NMR (400 MHz, CHLOROFORM-d) δ ppm 7.33 (m, 1H), 7.16-7.07 (m, 2H), 7.02-6.96 (m, 1H), 4.96 (m, 1H), 3.75 (m, 1H), 3.57 (m, 1H), 2.26-2.15 (m, 2H)

Step 5: Preparation of tert-butyl(S)-(3-(3-fluorophenyl)-3-hydroxypropoxy)carbamate

Tert-butyl hydroxycarbamate (50.4 g, 378.52 mmol, 1.05 eq) was dissolved in dimethylformamide (DMF; 500 mL), and sodium hydride (NaH; 15.86 g, 396.55 mmol, 60% purity, 1.1 eq) was added at 0° C. in a nitrogen atmosphere. The reaction mixture was agitated for 1 hour at 10° C., and the (1R)-3-chloro-1-(3-fluorophenyl)propan-1-ol obtained in Step 4 of Preparation Example 3 diluted in dimethyl formamide (DMF; 180 mL) was added dropwise at 0° C., then agitated for 16 hours at 10° C. TLC analysis (PE:EA=2:1) results showed that all of the starting material had disappeared, and the target compound was detected. An aqueous solution of ammonium chloride (3 L) was added to end the reaction, and the organic layer was extracted using ethyl acetate (2000 mL) and salt water (2000 mL). The organic layer was dried using sodium chlorate, then concentrated under vacuum to obtain tert-butyl(S)-(3-(3-fluorophenyl)-3-hydroxypropoxy)carbamate (176 g, 616.87 mmol, 85.56% yield) in the form of a bright yellow solid.

1H NMR (400 MHz, CHLOROFORM-d) δ ppm 7.67-7.64 (m, 1H), 7.23-7.17 (m, 1H), 7.08-7.03 (m, 2H), 6.88-6.81 (m, 1H), 4.99-4.84 (m, 1H), 4.02-3.97 (m, 1H), 3.96-3.89 (m, 1H), 1.95-1.89 (m, 1H), 1.88-1.78 (m, 1H), 1.42-1.39 (m, 9H)

Step 6: Preparation of tert-butyl(R)-3-(3-fluorophenyl)isoxazolidine-2-carboxylate

The tert-butyl(S)-(3-(3-fluorophenyl)-3-hydroxypropoxy)carbamate obtained in Step 5 of Preparation Example 3 (88 g, 308.44 mmol, 1 eq) and Et₃N (93.63 g, 925.31 mmol, 128.79 mL, 3 eq) were dissolved in dichloromethane (DCM; 1 L), then anhydrous methanesulfonic acid (80.59 g, 462.65 mmol, 1.5 eq) was slowly added at 0° C. The reaction mixture was agitated for 12 hours at 20° C. TLC analysis (PE:EA=3:1) results showed that all of the starting material had disappeared, and new spots were detected. Water (2000 mL) was added to end the reaction, and the organic layer was extracted using dichloromethane (DCM; 200 mL*3). The organic layer was dried using sodium sulfate, then vacuum concentrated. The concentrated compound was purified using chromatography (PE:EA=50:1 to 5:1) to extract 88 g of the target compound having a 82.5% e.e value. The target compound was purified using SFC (column: DAICEL CHIRALPAK AD (250 mm*50 mm, 10 um); mobile phase: [Neu-MeOH]; B %: 15%-15%, 3.4 min; 380 min) to obtain the white solid tert-butyl(R)-3-(3-fluorophenyl)isoxazolidine-2-carboxylate (51 g, 189.66 mmol, 30.74% yield, 99.4% purity).

The enantiomeric purity of the tert-butyl(R)-3-(3-fluorophenyl)isoxazolidine-2-carboxylate obtained in Step 6 was analyzed using the following SFC conditions.

Instrument: CAS-WH-ANA-SFC-C(SHIMADZU LC-30ADsf)

Column: Amycoat 50×4.6 mm I.D., 3 um

Mobile phase: Phase A for CO2, and Phase B for MeOH (0.05% DEA);

Gradient elution: MeOH (0.05% DEA) in CO₂ from 5% to 40%

Flow rate: 3 mL/min; Detector: PDA;

Column Temp: 35° C., Back Pressure: 100 Bar

In a case where the enantiomeric purity of the tert-butyl(R)-3-(3-fluorophenyl)isoxazolidine-2-carboxylate obtained in Step 6 was low, purification was carried out using the following SFC conditions to obtain the desired enantiomer in the form of a yellow liquid. (column: DAICEL CHIRALPAK AD-H (250 mm*30 mm, 5 um); Mobile phase: [0.1% NH3H2O MEOH]; B %: 15%-15%, 3.8 min; 600 minmin)

Step 7: Preparation of (R)-3-(3-fluorophenyl)isoxazolidine

Tert-butyl (3R)-3-(3-fluorophenyl)isoxazolidine-2-carboxylate (50 g, 185.94 mmol, 1 eq) was dissolved in ethyl acetate (EA; 200 mL), then HCl/EtOAc (4M, 300 mL, 6.45 eq) was added at 0° C. Then, the reaction mixture was agitated for 1 hour at 10° C. LCMS analysis results showed that all of the starting material had disappeared, and vacuum concentration was performed to obtain a solid. (R)-3-(3-fluorophenyl)isoxazolidine was obtained in the form of a white solid (32 g, 150.26 mmol, 80.81% yield, 95.62% purity, 100% e.e HCl).

MS: m/z 168.2 [M+H]+

1H NMR (400 MHz, DMSO-d6) δ ppm 7.53-7.43 (m, 2H), 7.39 (d, J=7.8 Hz, 1H), 7.30-7.23 (m, 1H), 5.01 (t, J=8.0 Hz, 1H), 4.47 (m, 1H), 4.27 (m, 1H), 2.87 (m, 1H), 2.62-2.52 (m, 1H)

In Step 7, the following conditions were used for enantiomeric purification or analysis of the compound.

Instrument: CAS-WH-ANA-SFC-C(SHIMADZU LC-30ADsf)

Column: Chiralpak AY-3 50×4.6 mm I.D., 3 um;

Mobile phase: Phase A for CO₂, and Phase B for IPA (0.05% DEA);

Gradient elution: B in A from 5% to 40%;

Flow rate: 3 mL/min; Detector: PDA;

Column Temp: 35° C.; Back Pressure: 100 Bar

The compound of Preparation Examples 4 through 52 were prepared using methods similar to those of Preparation Examples 1 through 3 above, and the Example Compounds of the present invention were prepared using the compounds of Preparation Examples 1 through 52.

<Preparation Example 4> Preparation of (R)-3-(3,5-difluorophenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.36-7.27 (m, 3H), 5.04-4.98 (t, J=7.6 Hz, 1H), 4.46-4.36 (m, 1H), 4.25-4.19 (dd, J=7.6, 15.2 Hz, 1H, 2.90-2.78 (m, 1H), 2.56-2.51 (m, 1H)

<Preparation Example 5> Preparation of (R)-3-(2,5-difluorophenyl)isoxazolidine

<Preparation Example 6> Preparation of (R)-3-(4-fluorophenyl)isoxazolidine

<Preparation Example 7> Preparation of (R)-3-(4-chlorophenyl)isoxazolidine

<Preparation Example 8> Preparation of (R)-3-(2,6-difluorophenyl)isoxazolidine

1H NMR (400 MHz, METHANOL-d4) δ 7.61 (tt, 1H, J=6.4, 8.4 Hz), 7.1-7.2 (m, 2H), 5.49 (t, 1H, J=8.4 Hz), 4.68 (dt, 1H, J=4.0, 8.0 Hz), 4.4-4.5 (m, 1H), 3.0-3.1 (m, 1H), 2.87 (qd, 1H, J=8.4, 12.4 Hz)

<Preparation Example 9> Preparation of (R)-3-(3-chloro-4-fluorophenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.82-7.89 (dd, J=2,7.2, 1H), 7.56-7.51 (s, J=15.6, 2H), 5.0-4.96 (m, 1H), 4.46-4.4 (m, 1H), 4.24-4.20 (m, 1H), 2.85-2.82 (m, 1H), 2.54-2.52 (m, 1H).

<Preparation Example 10> Preparation of (R)-3-(3-chloro-2-fluorophenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.49-7.42 (m, 2H), 7.20-7.16 (m, 1H), 6.56 (s, 1H), 4.66-4.65 (m, 1H), 3.96-3.91 (m, 1H), 3.67-3.65 (m, 1H), 2.66-2.61 (m, 1H), 2.08-2.01 (m, 1H).

<Preparation Example 11> Preparation of (R)-3-(2-fluoro-3-methylphenyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 12.6 (s, 1H), 7.46 (t, 1H, J=7.2 Hz), 7.3-7.1 (m, 1H), 7.1-7.0 (m, 1H), 5.25 (t, 1H, J=8.0 Hz), 4.6-4.4 (m, 1H), 4.38 (q, 1H, J=7.6 Hz), 3.0-2.8 (m, 1H), 2.7-2.5 (m, 1H), 2.26 (s, 3H).

<Preparation Example 12> Preparation of (R)-3-(3-methoxyphenyl)isoxazolidine

1H NMR (400 MHz, CDCl₃) δ 7.25-7.20 (m, 2H), 7.11-7.09 (m, 1H), 6.88-6.86 (m, 1H), 4.80-4.76 (m, 1H), 4.46-4.44 (m, 1H), 4.17-4.15 (m, 1H), 3.76 (s, 3H), 2.69-2.66 (m, 2H)

<Preparation Example 13> Preparation of (R)-3-(4-chloro-3-fluorophenyl)isoxazolidine

<Preparation Example 14> Preparation of (R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine

<Preparation Example 15> Preparation of (R)-3-(6-methylpyridine-3-yl)isoxazolidine

<Preparation Example 16> Preparation of (R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine

1H NMR (DMSO-d6, 400 MHz) δ=7.51 (dt, J=6.8, 8.4 Hz, 1H), 7.28 (dt, J=2.0, 8.8 Hz, 1H), 6.60 (br s, 1H), 4.64 (br s, 1H), 3.94 (dt, J=5.2, 8.0 Hz, 1H), 3.76-3.57 (m, 1H), 2.68-2.61 (m, 1H), 2.10-2.01 (m, 1H);

<Preparation Example 17> Preparation of (R)-3-(3,4-dichlorophenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.83 (d, J=2.0 Hz, 1H), 7.73 (d, J=8.4 Hz, 1H), 7.53 (dd, J=2.0, 8.4 Hz, 1H), 4.99-4.95 (m, 1H), 4.43-4.38 (m, 1H), 4.21-4.17 (m, 1H), 2.85-2.82 (m, 1H), 2.52-2.48 (m, 1H);

<Preparation Example 18> Preparation of (R)-3-(3-ethynylphenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.49 (s, 1H), 7.43-7.37 (m, 1H), 7.36-7.29 (m, 2H), 6.41 (s, 1H), 4.38 (s, 1H), 4.15 (s, 1H), 3.90 (m, 1H), 3.71 (s, 1H), 2.65-2.53 (m, 1H), 2.11-2.00 (m, 1H)

<Preparation Example 19> Preparation of (S)-3-methyl-3-phenylisoxazolidine

1H NMR (400 MHz, DMSO-d6) δ 12.86 (br s, 1H), 7.55-7.45 (m, 2H), 7.44-7.37 (m, 2H), 7.35-7.28 (m, 1H), 3.79-3.63 (m, 1H), 3.44-3.32 (m, 1H), 2.75-2.56 (m, 2H), 1.64 (s, 3H)

<Preparation Example 20> Preparation of (R)-3-methyl-3-phenylisoxazolidine

1H NMR (400 MHz, DMSO-d6) δ 12.88 (br s, 1H), 7.56-7.46 (m, 2H), 7.44-7.36 (m, 2H), 7.34-7.26 (m, 1H), 3.74-3.62 (m, 1H), 3.46-3.28 (m, 1H), 2.72-2.54 (m, 2H), 1.64 (s, 3H)

<Preparation Example 21> Preparation of (R)-3-(2,4-difluorophenyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ7.52-7.47 (m, 1H), 6.87-6.75 (m, 2H), 5.30 (s, 1H), 4.71-4.68 (m, 1H), 4.09-4.04 (m, 1H), 3.91-3.85 (m, 1H), 2.73-2.64 (3, 1H), 2.24-2.20 (m, 1H)

<Preparation Example 22> Preparation of (R)-3-(2,3-difluorophenyl)isoxazolidine

1H NMR (CHLOROFORM-d, 400 MHz) δ 7.27-7.29 (m, 1H), 7.02-7.06 (m, 2H), 5.44 (br s, 1H), 4.75 (dd, J1=4.4 Hz, J2=8.4 Hz, 1H), 4.08 (dt, J1=5.2 Hz, J2=8.0 Hz, 1H), 3.86 (q, J=8.0 Hz, 1H), 2.66-2.76 (m, 1H), 2.19-2.27 (m, 1H).

<Preparation Example 23> Preparation of (R)-3-(3,4-difluorophenyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ=7.24-7.19 (m, 1H), 7.12-7.06 (m, 2H), 5.24 (s, 1H), 4.46 (dd, J1=8.4 Hz, J2=5.6 Hz, 1H), 4.05 (dt, J1=8.0 Hz, J2=5.2 Hz, 1H), 3.91-3.85 (m, 1H), 2.70-2.61 (m, 1H), 2.25-2.17 (m, 1H).

<Preparation Example 24> Preparation of (R)-3-(4-chloro-2-fluorophenyl)isoxazolidine

1H NMR (400 MHz, DEUTERIUM OXIDE) δ 7.48-7.38 (m, 1H), 7.34-7.22 (m, 2H), 5.29-5.20 (m, 1H), 4.58-4.50 (m, 1H), 4.36-4.27 (m, 1H), 2.96-2.84 (m, 1H), 2.79-2.66 (m, 1H).

<Preparation Example 25> Preparation of (R)-3-(naphthalene-2-yl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 7.91-7.81 (m, 4H), 7.56-7.46 (m, 3H), 5.80-5.00 (m, 1H), 4.68 (t, J=7.2 Hz, 1H), 4.19-3.99 (m, 2H), 2.8-2.72 (m, 1H), 2.45-2.37 (m, 1H).

<Preparation Example 26> Preparation of (R)-3-(naphthelene-1-yl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 8.13 (br s, 1H), 7.9-7.9 (m, 1H), 7.7-7.8 (m, 2H), 7.5-7.6 (m, 3H), 5.3-5.9 (m, 1H), 5.22 (br t, 1H, J=6.4 Hz), 3.9-4.2 (m, 2H), 2.8-2.9 (m, 1H), 2.3-2.5 (m, 1H).

<Preparation Example 27> Preparation of (R)-3-(thiophene-2-yl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 7.23 (d, J=5.0 Hz, 1H), 7.04-6.99 (m, 1H), 6.99-6.94 (m, 1H), 4.97-4.58 (m, 2H), 4.11-3.96 (m, 2H), 2.75-2.58 (m, 1H), 2.44-2.33 (m, 1H).

<Preparation Example 28> Preparation of (R)-3-(2-chloro-3-fluorophenyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 7.45 (d, J=7.6 Hz, 1H), 7.22 (m, 1H), 7.02 (m, 1H), 5.44 (m, 1H), 4.87 (dd, J=4.0, 8.7 Hz, 1H), 4.10 (m, 1H), 3.79 (m, 1H), 2.86-2.75 (m, 1H), 2.21-2.10 (m, 1H).

<Preparation Example 29> Preparation of (R)-3-(3-chloro-5-fluorophenyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 7.19 (s, 1H), 7.08-6.93 (m, 2H), 5.79-5.03 (m, 1H), 4.56-4.42 (m, 1H), 4.17-4.02 (m, 1H), 3.87 (s, 1H), 2.78-2.63 (m, 1H), 2.32-2.18 (m, 1H).

<Preparation Example 30> Preparation of (R)-3-(3-chlorophenyl)isoxazolidine

1H NMR (400 MHz, DMSO-d6) δ=7.71-7.63 (m, 1H), 7.57-7.41 (m, 3H), 5.01 (t, J=8.0 Hz, 1H), 4.47 (m, 1H), 4.26 (m, 1H), 2.94-2.81 (m, 1H), 2.63-2.52 (m, 1H)

<Preparation Example 31> Preparation of (R)-3-(2,3,4-trifluorophenyl)isoxazolidine

<Preparation Example 32> Preparation of (R)-3-(3-chloro-2,5-difluorophenyl)isoxazolidine

<Preparation Example 33> Preparation of (R)-3-(2,3,6-trifluorophenyl)isoxazolidine

<Preparation Example 34> Preparation of (R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine

<Preparation Example 35> Preparation of (R)-3-(3-chloro-2-methylphenyl)isoxazolidine

<Preparation Example 36> Preparation of (R)-3-(2,3-dichlorophenyl)isoxazolidine

1H NMR (DMSO-d6, 400 MHz) HNMR 7, δ=7.61-7.44 (m, 2H), 7.37-7.30 (m, 1H), 6.67 (d, J=6.0 Hz, 1H), 4.79-4.63 (m, 1H), 3.94 (td, J=4.0, 8.0 Hz, 1H), 3.63 (d, J=8.0 Hz, 1H), 2.78-2.74 (m, 1H), 1.99-1.91 (m, 1H).

<Preparation Example 37> Preparation of (R)-3-(isoxazolidine-3-yl)benzonitrile

1H NMR (400 MHz, DMSO-d6) δ=8.04 (s, 1H), 7.90-7.87 (m, 2H), 7.69-7.62 (m, 1H), 5.05 (t, J=7.8 Hz, 1H), 4.48-4.43 (m, 1H), 4.27-4.21 (m, 1H), 2.92-2.82 (m, 1H), 2.62-2.53 (m, 1H).

<Preparation Example 38> Preparation of (R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine

1H NMR (400 MHz, Chloroform-d) δ 7.65 (s, 1H), 7.59 (d, J=7.7 Hz, 1H), 7.53 (d, J=7.8 Hz, 1H), 7.46 (t, J=7.7 Hz, 1H), 5.64-5.19 (m, 1H), 4.58 (t, J=7.2 Hz, 1H), 4.11 (td, J=8.2, 5.2 Hz, 1H), 3.94 (s, 1H), 2.80-2.67 (m, 1H), 2.36-2.23 (m, 1H).

<Preparation Example 39> Preparation of (R)-3-benzylisoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 12.85-12.47 (m, 1H), 7.37-7.27 (m, 5H), 4.51-4.41 (m, 1H), 4.36-4.18 (m, 2H), 3.60 (dd, J=4.8, 13.6 Hz, 1H), 3.12 (dd, J=10.4, 13.6 Hz, 1H), 2.53-2.42 (m, 1H), 2.41-2.30 (m, 1H).

<Preparation Example 40> Preparation of (S)-3-benzylisoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 12.74-12.40 (m, 1H), 7.28-7.18 (m, 5H), 4.42-4.32 (m, 1H), 4.25-4.10 (m, 2H), 3.50 (dd, J=4.8, 13.6 Hz, 1H), 3.03 (dd, J=10.4, 13.2 Hz, 1H), 2.44-2.33 (m, 1H), 2.32-2.20 (m, 1H).

<Preparation Example 41> Preparation of (S)-3-(3-chloro-2-methoxybenzyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 12.97-12.35 (m, 2H), 7.34 (dd, J=1.6, 8.0 Hz, 1H), 7.24 (dd, J=1.2, 7.6 Hz, 1H), 7.10-7.00 (m, 1H), 4.44 (dt, J=5.6, 7.6 Hz, 1H), 4.39-4.27 (m, 2H), 3.95 (s, 3H), 3.54 (dd, J=5.2, 13.6 Hz, 1H), 3.22 (dd, J=10.0, 13.6 Hz, 1H), 2.53-2.42 (m, 1H), 2.42-2.29 (m, 1H).

<Preparation Example 42> Preparation of (S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ=7.14-7.07 (m, 1H), 6.98 (d, J=7.6 Hz, 1H), 6.91 (t, J=8.8 Hz, 1H), 4.08-3.98 (m, 1H), 3.82 (q, J=7.6 Hz, 1H), 3.68-3.59 (m, 1H), 2.96 (dd, J=7.2, 14.0 Hz, 1H), 2.70 (dd, J=7.2, 14.0 Hz, 1H), 2.25 (d, J=2.4 Hz, 3H), 1.98-1.88 (m, 1H).

<Preparation Example 43> Preparation of (S)-3-(3-fluorobenzyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 7.26 (dt, J1=6.0 Hz, J2=7.6 Hz, 1H), 7.01 (d, J=7.6 Hz, 1H), 6.96-6.89 (m, 2H), 4.87 (s, 1H), 3.99 (dt, J1=5.6 Hz, J2=8.4 Hz, 1H), 3.80 (q, J=8.0 Hz, 1H), 3.68-3.59 (m, 1H), 2.93 (dd, J1=7.2 Hz, J2=14.0 Hz, 1H), 2.67 (dd, J1=7.2 Hz, J2=14.0 Hz, 1H), 2.31-2.22 (m, 1H), 1.94-1.85 (m, 1H).

<Preparation Example 44> Preparation of (S)-3-(3,5-difluorobenzyl)isoxazolidine

1H NMR (400 MHz, CHLOROFORM-d) δ 6.77 (dd, J1=2.4 Hz, J2=8.4 Hz, 2H), 6.66 (tt, J1=2.4 Hz, J2=9.2 Hz, 1H), 4.89 (br s, 1H), 4.02 (dt, J1=5.2 Hz, J2=8.4 Hz, 1H), 3.77 (q, J=8.0 Hz, 1H), 3.66-3.59 (m, 1H), 2.89 (dd, J1=7.6 Hz, J2=14.0 Hz, 1H), 2.65 (dd, J1=6.8 Hz, J2=14.0 Hz, 1H), 2.34-2.26 (m, 1H), 1.93-1.85 (m, 1H).

<Preparation Example 45> Preparation of (S)-3-(isoxazolidine-3-ylmethyl)-N,N-dimethylaniline

1H NMR (400 MHz, CHLOROFORM-d) δ 6.77 (dd, J1=2.4 Hz, J2=8.4 Hz, 2H), 6.66 (tt, J1=2.4 Hz, J2=9.2 Hz, 1H), 4.89 (br s, 1H), 4.02 (dt, J1=5.2 Hz, J2=8.4 Hz, 1H), 3.77 (q, J=8.0 Hz, 1H), 3.66-3.59 (m, 1H), 2.89 (dd, J1=7.6 Hz, J2=14.0 Hz, 1H), 2.65 (dd, J1=6.8 Hz, J2=14.0 Hz, 1H), 2.34-2.26 (m, 1H), 1.93-1.85 (m, 1H).

<Preparation Example 46> Preparation of (S)-3-(pyridine-2-ylmethyl)isoxazolidine

1H NMR (DMSO-d6, 400 MHz) δ=8.54-8.41 (m, 1H), 7.70 (dt, J=2.0, 7.6 Hz, 1H), 7.32-7.18 (m, 2H), 5.98 (br s, 1H), 3.86-3.54 (m, 3H), 2.91-2.70 (m, 2H), 2.18-2.10 (m, 1H), 1.85-1.74 (m, 1H).

<Preparation Example 47> Preparation of (S)-3-(pyridine-3-ylmethyl)isoxazolidine

1H NMR (CDCl₃, 400 MHz) δ 8.55-8.45 (m, 2H), 7.61 (m, 1H), 7.27-7.22 (m, 1H), 4.04 (s, 1H), 3.87-3.73 (m, 1H), 3.70-3.55 (m, 1H), 2.92 (m, 1H), 2.69 (m, 1H), 2.37-2.24 (m, 1H), 1.99-1.82 (m, 1H)

<Preparation Example 48> Preparation of (S)-3-(4-(trifluoromethyl)benzyl)isoxazolidine

<Preparation Example 49> Preparation of (S)-3-(3-chloro-2-methylbenzyl)isoxazolidine

<Preparation Example 50> Preparation of (S)-3-(2,3-dichlorobenzyl)isoxazolidine

<Preparation Example 51> Preparation of (S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine

<Preparation Example 52> Preparation of (S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine

2. Preparation of the Example Compounds of the Present Invention <Preparation Example 1> Preparation of Example Compound 4

Step 1: Preparation of (R)-2-(6-chloropyrimidine-4-yl)-3-phenylisoxazolidine

4,6-dichloropyrimidine (500 mg, 3.36 mmol) and (R)-3-phenylisoxazolidine (526 mg, 3.52 mmol) were dissolved in a dimethylsulfoxide (DMSO, 7 ml) solvent, and the reaction solution was agitated for 30 minutes at 60° C. After the reaction was completed, extraction was performed using ethylacetate and water. The gathered organic layer was washed with salt water, dried with anhydrous sodium sulfate, then vacuum concentrated, and purified with MPLC (ethylacetate/hexane) to obtain the target compound (R)-2-(6-chloropyrimidine-4-yl)-3-phenylisoxazolidine (800 mg, 91%) in the form of a transparent liquid.

MS (m/z): 262.07[M+1], UPLC r. t. (min): 1.58

NMR: 1H NMR (400 MHz, DMSO-d6) δ 8.48 (s, 1H), 7.42-7.22 (m, 5H), 7.09 (s, 1H), 5.56-5.43 (m, 1H), 4.27-4.17 (m, 1H), 4.00-3.88 (m, 1H), 2.97-2.80 (m, 1H), 2.37-2.22 (m, 1H).

Step 2: Preparation of (R)—N-(4-fluoro-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine

The (R)-2-(6-chloropyrimidine-4-yl)-3-phenylisoxazolidine obtained in Step 1 of Preparation Example 1 (800 mg, 3.06 mmol), 4-fluoro-2-methoxy-5-nitroaniline (626 mg, 3.36 mmol) and potassium carbonate (1267 mg, 9.17 mmol) were added to and dissolved in sec-butanol (12 ml), then treated ultrasonically for 5 minutes in a nitrogen atmosphere to remove gases. Tris(dibenzylideneacetone)dipalladium(0) (Pd₂(dba)₃; 280 mg, 0.306 mmol) and Xphos (146 mg, 0.306 mmol) were added to the reaction mixture, which was then agitated for 1 hour at 100° C. After the reaction was completed, filtration was performed using celite, followed by washing with ethylacetate. The filtrate was concentrated, then purified with MPLC (ethylacetate/hexane) to obtain the target compound (960 mg, 76%).

MS (m/z): 412.13[M+1], UPLC r. t. (min): 1.70,

NMR: 1H NMR (400 MHz, DMSO-d6) δ 9.08 (s, 1H), 9.01 (s, 1H), 8.34 (s, 1H), 7.47-7.21 (m, 6H), 6.79 (s, 1H), 5.59-5.46 (m, 1H), 4.26-4.14 (m, 1H), 4.01 (s, 3H), 3.94-3.76 (m, 1H), 2.87-2.71 (m, 1H), 2.36-2.19 (m, 1H).

Step 3: Preparation of (R)—N1-(2-(dimethylamino)ethyl)-5-methoxy-N1-methyl-2-nitro-N4-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,4-thiamine

The (R)—N-(4-fluoro-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine obtained in Step 2 of Preparation Example 1 (100 mg, 0.243 mmol) and potassium carbonate (67.2 mg, 0.486 mmol) were dissolved in dimethyl sulfoxide (DMSO; 1.5 ml). Then N1,N1,N2-trimethylethane-1,2-thiamine (0.035 mL, 0.267 mmol) was added, and agitated for 2 hours at 70° C. After the reaction ended, extraction was performed using ethylacetate and water. The gathered organic layer was washed with salt water, dried with anhydrous sodium sulfate, and concentrated under vacuum to obtain the target compound (110 mg, 92%) which was used in the next reaction without purification.

MS (m/z): 494.24[M+1], UPLC r. t. (min): 1.23

Step 4: Preparation of (R)—N1-(2-(dimethylamino)ethyl)-5-methoxy-N1-methyl-N4-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,2,4-triamine

The (R)—N1-(2-(dimethylamino)ethyl)-5-methoxy-N1-methyl-2-nitro-N4-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,4-thiamine obtained in Step 3 of Preparation Example 1 (110 mg, 0.223 mmol) and SnCl₂2H₂O (251 mg, 1.114 mmol) were dissolved in ethylacetate (1.5 ml), and agitated for 1 hour at 50° C. The temperature of the reaction solution was brought down to room temperature, and aqueous solution of ammonia was added dropwise until pH5 was reached. Anhydrous sodium carbonate was added to the reaction mixture to adjust to pH 7. The reaction mixture was filtered with celite, and washed multiple times with ethylacetate. The filtrate was concentrated under vacuum to obtain the target compound (90 mg, 87%), which was used in the next reaction without purification.

MS (m/z): 464.27[M+1], UPLC r. t. (min): 1.03

Step 5: (R)—N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-(3-phenylisoxazolidin-2-yl)pyrimidin-4-yl)amino)phenyl)acrylamide was Prepared

The (R)—N1-(2-(dimethylamino)ethyl)-5-methoxy-N1-methyl-N4-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,2,4-triamine obtained in Step 4 of Preparation Example 1 (85 mg, 0.183 mmol) was dissolved in tetrahydrofuran (THF; 1.5 ml), and a saturated sodium bicarbonate (NaHCO₃; 1.5 ml) aqueous solution was added. While agitating vigorously at 0° C., acryloyl chloride (30 μl, 0.367 mmol) diluted in tetrahydrofuran (THF; 0.5 mL) was added slowly dropwise. After 10 minutes agitation, extraction was performed using ethylacetate and distilled water. The gathered organic layer was dried using anhydrous sodium sulfate. The filtrate was vacuum concentrated, then purified using a Prep-150 LC System to obtain the target compound (58 mg, 61%).

MS (m/z): 518.28[M+1], UPLC r. t. (min): 1.11

NMR: 1H NMR (400 MHz, Methanol-d4) δ 8.15 (s, 1H), 7.97 (s, 1H), 7.43 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.93 (s, 1H), 6.61-6.35 (m, 3H), 5.90-5.75 (m, 1H), 5.60-5.43 (m, 1H), 4.23-4.06 (m, 1H), 4.03-3.93 (m, 1H), 3.91 (s, 3H), 3.45-3.36 (m, 2H), 3.20-3.06 (m, 2H), 2.85-2.79 (m, 1H), 2.77 (s, 6H), 2.73-2.65 (m, 3H), 2.42-2.27 (m, 1H)

<Preparation Example 2> Preparation of Example Compound 56

Step 1: Preparation of (R)-2-(6-chloropyrimidine-4-yl)-3-phenylisoxazolidine

4,6-dichloropyrimidine (4.23 g), the (R)-3-phenylisoxazolidine (6 g) obtained in Preparation Example 2 and N,N-diisopropylethylamine (DIPEA; 18.91 ml) were placed in dimethylsulfoxide (DMSO; 135 ml) solvent and dissolved. The reaction solution was reacted for 30 minutes at 80° C. Ethyl acetate was added to the reaction mixture to dilute, followed by extraction with ethylacetate and salt water. The organic layers were added. The organic layer was dried with sodium sulfate and vacuum concentrated, then purified using medium pressure liquid chromatography (ethylacetate/n-hexane) to obtain the target compound (R)-2-(6-chloropyrimidine-4-yl)-3-phenylisoxazolidine (48.6%).

Step 2: Preparation of (R)—N-(4-fluoro-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine

4-fluoro-2-methoxy-5-nitroaniline (4.23 g) the (R)-2-(6-chloropyridine-4-yl)-3-phenylisoxazolidine obtained in Step 1 of Preparation Example 2 (1.84 g) and potassium carbonate (2.56 g) were dissolved in a sec-butanol solvent (20.60 ml). The temperature of the reaction solution was raised to 60° C., then xphos (0.295 g) and tris(dibenzilydeneacetone)dipalladium(0) (Pd₂(dba)₃; 0.425 g) were placed in the reaction mixture solution. The reaction solution was reacted for 120 minutes at 100° C. After the reaction, the organic layer was vacuum concentrated and purified using medium pressure liquid chromatography (ethylacetate/n-hexane) to obtain the target compound (R)—N-(4-fluoro-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine (58.9% yield).

Step 3: Preparation of (R)-1-(5-methoxy-2-nitro-4((6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)piperidine-4-on

The (R)—N-(4-fluoro-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine obtained in Step 2 of Preparation Example 2 (1.6 g) was placed in a dimethylsulfoxide (DMSO; 15 ml) solvent and dissolved, and then potassium carbonate (1.98 g) and piperidine-4-on hydrochloride (1.45 g) were added to the reaction solution. Thereafter, the reaction solution was reacted for 120 minutes at 70° C. After the reaction, water was added to the reaction mixture to dilute the reaction solution. Extraction was performed using ethylacetate and salt water, followed by vacuum concentration of the organic layer and purification using medium pressure liquid chromatography (dichloromethane/methanol) to obtain the target compound (R)-1-(5-methoxy-2-nitro-4((6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)piperidine-4-on (96% yield).

Step 4: Preparation of (R)—N-(4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine

The (R)-1-(5-methoxy-2-nitro-4((6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)piperidine-4-on obtained in Step 3 of Preparation Example 2 (1.8 g) was placed in a dichloromethane (15 ml) solvent and dissolved, and 1-cyclopropylpiperazine (0.495 mL) and sodium triacetoxy borohydride (1.45 g) was added. The reaction solution was reacted for 16 hours at room temperature. The reaction was ended by adding 2 normal sodium hydroxide aqueous solution, and extraction was carried out using dichloromethane solvent and salt water. The organic layer was vacuum concentrated and purified using medium pressure liquid chromatography (dichloromethane/methanol) to obtain the target compound (R)—N-(4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine (73.5% yield).

Step 5: Preparation of (R)-4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-6-methoxy-N1-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,3-thiamine

The (R)—N-(4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-2-methoxy-5-nitrophenyl)-6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-amine obtained in Step 4 of Preparation Example 2 (1.6 g) was placed in an ethylacetate (20 ml) and methanol (2 ml) solvent and dissolved, then tin(II) chloride dihydrate (2.84 g, 12.56 mmol) was added. Thereafter, the reaction solution was reacted for 120 minutes at 60° C. The reaction was ended by adding aqueous sodium bicarbonate solution, followed by celite filtration and washing with ethylacetate solvent. The filtrate was extracted using ethylacetate and salt water, and the organic layer was vacuum concentrated and purified using medium pressure liquid chromatography (dichloromethane/methanol) to obtain the target compound (R)-4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-6-methoxy-N1-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,3-thiamine (77% yield).

Step 6: Preparation of (R)—N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide

The (R)-4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-6-methoxy-N1-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,3-thiamine obtained in Step 5 of Preparation Example 2 (1.18 g) was dissolved in THE solvent (16 mL), then a sodium bicarbonate aqueous solution (16 mL) was added. [The mixture was] placed in an ethylacetate (20 ml) and methanol (2 ml) solvent and dissolved. The temperature of the reaction solution was lowered to 0° C., then THF solution (4 ml) in which acryloylchloride (0.315 mL) was dissolved was slowly added dropwise. Thereafter, the reaction solution was reacted for 30 minutes at 0° C., and the reaction was ended by adding sodium bicarbonate aqueous solution to end the reaction, followed by extraction using ethylacetate and salt water. The organic layer was vacuum concentrated and purified using medium pressure liquid chromatography (dichloromethane/methanol) to obtain the target compound (R)—N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide (84% yield).

In anot (R)-4-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-6-methoxy-N1-(6-(3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)benzene-1,3-thiamine obtained in Step 5 of Preparation Example 2 for the Example Compounds (128 mg) was dissolved in dichloromethane (2 ml), followed by addition of ethylene dichloride (EDC; 48 mg), acrylic acid (0.017 mL) and N,N-diisopropylethylamine (DIPEA; 0.108 mL). The reaction solution was reacted for 1 hour at room temperature, and the reaction was ended using sodium bicarbonate aqueous solution. The compound was extracted using dichloromethane solvent and salt water. The organic layer was vacuum dried, vacuum concentrated, then purified using medium pressure liquid chromatography (dichloromethane/methanol) to obtain the target compound (86% yield).

All of the example compounds of the present invention (Example Compounds 1 through 1059) were prepared using methods similar to those of Preparation Examples 1 or 2, and the name, chemical structural formula, NMR and UPLC analysis results of the respective Example Compounds are given in Table 1 below.

TABLE 1 Example Name of UPLC Compound Structure Compound ¹H NMR; MS[M + H]⁺ r.t, (min) 1

N-(2((2- (dimethylamino)- ethyl)(methyl)amino)- 4-methoxy-5-((6-((S)-3- phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol- d₄) δ 8.15 (s, 1H), 7.95 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.25 (s, 1H), 6.93 (s, 1H), 6.59- 6.36 (m, 3H), 5.90-5.76 (m, 1H), 5.61-5.47 (m, 1H), 4.20- 4.08 (m, 1H), 4.02-3.93 (m, 1H), 3.92 (s, 3H), 3.45-3.36 (m, 2H), 3.20-3.07 (m, 2H), 2.85-2.79 (m, 1H), 2.77 (s, 6H), 2.71 (s, 3H), 2.41-2.26 (m, 1H); 518.3 [M + H]⁺ 1.12 2

N-(4-methoxy-2- morpholino-5-((6-((S)-3- phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol- d₄) δ 8.28 (s, 1H), 8.13 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.91 (s, 1H), 6.63- 6.45 (m, 1H), 6.43-6.27 (m, 2H), 5.85-5.69 (m, 1H), 5.58- 5.46 (m, 1H), 4.21-4.09 (m, 1H), 4.02-3.92 (m, 1H), 3.92- 3.82 (m, 7H), 2.95-2.88 (m, 4H), 2.85-2.68 (m, 1H), 2.42- 2.23 (m, 1H); 503.2 [M + H]⁺ 1.34 3

N-(4-methoxy-2- (4-methylpiperazine- 1-yl)-5-((6((S)-3- phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol- d₄) δ 8.31 (s, 1H), 8.14 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.92 (s, 1H), 6.62- 6.47 (m, 1H), 6.45-6.39 (m, 1H), 6.39-6.30 (m, 1H), 5.86- 5.71 (m, 1H), 5.60-5.47 (m, 1H), 4.20-4.07 (m, 1H), 4.01- 3.89 (m, 1H), 3.89-3.82 (m, 4H), 3.09-2.95 (m, 7H), 2.87- 2.72 (m, 1H), 2.65 (s, 3H), 2.41- 2.24 (m, 1H); 516.3 [M + H]⁺ 1.04 4

N-(2-((2- (dimethylamino)- ethyl)(methyl)amino)- 4-methoxy-5-((6- (R)-3-phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol- d₄) δ 8.15(s, 1H), 7.97 (s, 1H), 7.43 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.93 (s, 1H), 6.61- 6.35 (m, 3H), 5.90-5.75 (m, 1H), 5.60-5.43 (m, 1H), 4.23- 4.06 (m, 1H), 4.03-3.93 (m, 1H), 3.91 (s, 3H), 3.45-3.36 (m, 2H), 3.20-3.06 (m, 2H), 2.85-2.79 (m, 1H), 2.77 (s, 6H), 2.73-2.65 (m, 3H), 2.42- 2.27 (m,1H); 518.3 [M + H]⁺ 1.11 5

N-(4-methoxy-2- morpholino-5-((6- ((R)-3-phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol- d₄) δ 8.28 (s, 1H), 8.13 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.23 (s, 1H), 6.91 (s, 1H), 6.62- 6.46 (m, 1H), 6.44-6.26 (m, 2H), 5.85-5.70 (m, 1H), 5.59- 5.45 (m, 1H), 4.19-4.07 (m, 1H), 4.01-3.93 (m, 1H) 3.93- 3.82 (m, 7H), 2.95-2.87 (m, 4H), 2.86-2.72 (m, 1H), 2.40- 2.26 (m, 1H); 503.2 [M + H]⁺ 1.34 6

N-(4-methoxy-2-(4- methylpiperazine-1-yl)- 5-((6-((R)-3- phenylisoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (s, 1H), 8.14(s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.92 (s, 1H), 6.61-6.49 (m, 1H), 6.43 (s, 1H), 6.40-6.29 (m, 1H), 5.87-5.73 (m, 1H), 5.59-5.45 (m, 1H), 4.20- 4.02 (m, 1H), 4.02-3.91 (m, 1H), 3.91-3.81 (m, 4H), 3.12-2.92 (m, 7H), 2.85-2.70 (m, 1H), 2.63 (s, 3H), 2.40-2.26 (m, 1H); 516.3 [M + H]⁺ 1.04 7

N-(2-(4- cyclopropylpiperazine- 1-yl)-4-methoxy-5-((6- ((R)-3-phenylisoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.71 (s, 1H), 8.27 (d, 2H), 7.43-6.98 (m, 5H), 6.79 (d, 2H), 6.36 (s, 1H), 5.52 (d, 2H), 3.81 (s, 3H), 3.15-3.03 (m, 4H), 2.81-2.71 (m, 4H), 2.67 (s, 1H), 2.37 (d, 2H), 2.31-2.21 (m, 3H), 1.91 (s, 1H), 1.11-1.03 (m, 3H),; 540.3 [M + H]⁺ 1.14 8

N-(2-(2- (dimethylamino)ethoxy)- 4-methoxy-5-((6-(R)-3- phenylisoxazolidine-2- yl)pyrimidine-4-yl- amino)phenyl)acrylamide 505.3[M + H]⁺ 1.07 9

N-(4-methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3- phenylisoxazolidine-2- yl-pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (d, J = 4.0 Hz, 1H), 8.56 (d, J = 4.2 Hz, 1H), 8.15 (t, J = 3.2 Hz, 1H), 7.43- 7.23 (m, 5H), 6.82 (d, J = 3.90 Hz, 1H), 6.70-6.60 (m, 1H), 6.34 (d, J = 4.3 Hz, 1H), 6.20 (d, J = 16.7 Hz, 1H), 5.72 (d, J = 10.2 Hz, 1H), 5.53 (s, 1H), 4.13 (t, 1H), 3.39 (t, 2H), 3.32 (s, 3H), 3.09-2.98 (m, 2H), 2.81- 2.71 (m, 1H), 2.71-2.60 (m, 4H), 2.40-2.19 (m, 8H), 2.14 (s, 3H), 1.89-1.78 (m, 2H), 1.78-1.63 (m, 2H), ),; 599.3 [M + H] 1.05 10

N-(4-methoxy-2-(4-(1- methylpiperidine-4- yl)piperazine-1-yl)-5- ((6-(R)-3- phenylisoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.27 (s, 1H), 8.14 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.90 (s, 1H), 6.56-6.45 (m, 1H), 6.45- 6.26 (m, 2H), 5.85-5.71 (m, 1H), 5.59-5.45 (m, 1H), 4.18-4.03 (m, 1H), 4.03-3.91 (m, 1H), 3.86 (s, 3H), 3.50-3.37 (m, 3H), 3.05-2.95 (m, 4H), 2.94-2.81 (m, 6H), 2.76 (s, 3H), 2.69-2.56 (m, 2H), 2.44-2.25 (m, 1H), 2.23-2.08 (m, 2H); 599.3 [M + H]⁺ 0.97 11

N-(4-methoxy-2-(4- morpholinopiperidine- 1-yl)-5-((6-((R)-3- phenylisoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.97 (s, 1H), 9.19 (s, 1H), 8.30 (s, 1H), 7.88 (s, 1H), 7.37 (dd, J = 6.9, 1.3 Hz, 4H), 7.29 (ddd, J = 8.6, 5.4, 2.1 Hz, 1H), 6.90 (s, 1H), 6.67 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.79-5.73 (m, 1H), 5.52 (d, J = 8.1 Hz, 1H), 4.31 (d, J = 4.5 Hz, 1H), 4.07 (d, J = 7.7 Hz, 1H), 3.98 (d, J = 3.9 Hz, 5H), 3.79 (s, 3H), 3.44 (d, J = 12.0 Hz, 2H), 3.36- 3.27 (m, 1H), 3.22 (d, J = 11.5 Hz, 2H), 3.14 (d, J = 10.3 Hz, 2H), 2.97- 2.90 (m, 1H), 2.77 (s, 2H), 2.37- 2.28 (m, 1H), 2.20 (s, 2H), 2.04 (d, J = 13.4 Hz, 2H); 586.3 [M + H]⁺ 1.11 12

N-(2-(4- (dimethylamino)pip- eridine-1-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.28 (s, 1H), 8.14 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.89 (s, 1H), 6.65-6.48 (m, 1H), 6.47-6.28 (m, 2H), 5.86-5.73 (m, 1H), 5.58-5.43 (m, 1H), 4.20-4.08 (m, 1H), 4.02-3.90 (m, 1H), 3.86 (s, 3H), 3.64-3.55 (m, 4H), 3.26-3.13 (m, 4H), 2.93-2.71 (m, 7H), 2.41-2.28 (m, 1H), 2.21-2.09 (m, 1H); 544.3 [M + H]⁺ 1.09 13

N-2-((R)-3- (dimethylamino)pyr- rolidine-1-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.10 (s, 1H), 7.69 (S, 1H), 7.42 (s, 2H), 7.32 (s, 2H), 7.24 (s, 1H), 6.69 (s, 1H), 6.56-6.43 (m, 1H), 6.40-6.23 (m, 2H), 5.87-5.72 (m, 1H), 5.57-5.44 (m, 1H), 4.17-4.04 (m, 1H), 4.00-3.89 (m, 1H), 3.86 (s, 3H), 3.49-3.34 (m, 5H), 2.86-2.72 (m, 1H), 2.63 (s, 6H), 2.41-2.24 (m, 2H), 2.11- 2.01 (m, 1H); 530.3 [M + H]⁺ 1.05 14

N-(2-((S)-3- (dimethylamino)pyr- rolidine-1-yl)-4- methxy-5-((6-(R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.91 (S,1H), 9.34 (s, 1H), 9.04 (s, 1H), 8.20 (s, 1H), 7.55 (s, 1H), 7.37 (d, J = 1.7 Hz, 2H), 7.36 (s, 1H), 7.27 (s, 1H), 6.64 (s, 1H), 6.51 (dd, J = 17.1, 10.2 Hz, 1H), 6.21 (dd, J = 17.1, 2.1 Hz, 1H), 6.14 (s, 1H), 5.73 (d, J = 10.4 Hz, 1H), 5.52 (dd, J = 8.7, 5.1 Hz, 2H), 4.23-4.17 (m, 1H), 3.81 (s, 3H), 3.43 (d, J = 6.7 Hz, 2H), 3.34 (d, J = 3.7 Hz, 2H), 3.25 (t, J = 8.2 Hz, 1H), 2.84 (t, J = 5.8 Hz, 6H), 2.35-2.30 (m, 1H), 2.30- 2.22 (m, 2H), 2.11 (dd, J = 12.6, 6.7 Hz, 1H),; 530.4 [M + H]⁺ 1.07 15

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5-((6- ((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.14 (s, 1H), 7.42 (s, 2H), 7.33 (s, 2H), 7.24 (s, 1H), 6.91 (s, 1H), 6.60-6.47 (m, 1H), 6.47-6.28 (m, 2H), 5.88-5.71 (m, 1H), 5.60-5.42 (m, 1H), 4.20-4.05 (m, 1H), 4.01-3.90 (m, 1H), 3.88 (s, 3H) 3.09 (s, 8H), 3.00-2.87 (m, 2H), 2.87- 2.70 (m, 1H), 2.43-2.25 (m, 1H), 1.37- 1.20 (m, 3H); 530.3 [M + H]⁺ 1.06 16

N-(2-(4- acetylpiperazine-1- yl)-4-methoxy-5-((6((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.30 (s, 1H), 8.31 (s, 1H), 8.23 (d, J = 4.1 Hz, 1H), 7.45-7.19 (m, 5H), 7.00 (s, 1H), 6.42 (dd, J = 13.5 Hz, 1H), 6.23 (d, J = 18.3 Hz, 2H), 5.77 (d, J = 9.8 Hz, 1H), 5.52 (s, 1H), 4.23 (s, 1H), 4.02-3.92 (m, 2H), 3.86- 3.74 (m, 4H), 3.50 (s, 3H), 3.38-3.29 (m, 4H), 2.80 (s, 3H), 2.36-2.22 (m, 2H),; 544.3 [M + H]⁺ 1.27 17

N-(4-methoxy-2- ((2- methoxyethyl)(meth- yl)amino-5-((6- ((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.45- 8.34 (m, 1H), 7.12 (d, J = 4.0 Hz, 1H), 7.01 (s, 1H), 6.91-6.82 (m, 5H), 6.76 (dd, J = 13.8 Hz, 1H), 6.16 (d, J = 16.4 Hz, 1H), 5.99 (s, 1H), 5.75-5.65 (m, 1H), 4.85- 4.74 (m, 9H), 4.00 (d, J = 4.3 Hz, 2H), 3.31- 3.17 (m, 6H), 3.05 (s, 1H), 1.93-1.76 (m, 2H),; 505.3 [M + H]⁺ 1.45 18

N-(4-methoxy-2-(4- oxetane-3- yl)piperazine-1-yl)- 5-((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.14 (s, 1H), 7.42 (d, J = 7.3 Hz, 2H), 7.32 (dd, J = 6.8, 8.4 Hz, 2H), 7.27-7.20 (m, 1H), 6.93 (s, 1H), 6.50 (dd, J = 10.2, 17.0 Hz, 1H), 6.41 (d, J = 1.1 Hz, 1H), 6.33 (dd, J = 1.6, 17.0 Hz, 1H), 5.78 (dd, J = 1.6, 10.2 Hz, 1H), 5.52 (dd, J = 4.7, 8.5 Hz, 1H), 4.73 (t, J = 6.7 Hz, 2H), 4.65 (t, J = 6.2 Hz, 2H), 4.17-4.08 (m, 1H), 4.02- 3.92 (m, 1H), 3.87 (s, 3H), 3.66-3.57 (m, 1H), 3.03-2.95 (m, 4H), 2.85-2.71 (m, 1H), 2.63-2.51 (m, 4H), 2.38-2.27 (m, 1H); 558.3 [M + H]⁺ 1.07 19

N-(4-methoxy-2-(2- methyl-1H- imidazole-1-yl)-5- ((6((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.38 (s, 1H), 8.27 (s, 1H), 7.47 (d, J = 7.6 Hz, 2H), 7.37 (t, J = 7.6 Hz, 2H), 7.27 (t, J = 7.2 Hz, 1H), 7.12-7.03 (m, 2H), 7.01 (s, 1H), 6.69 (s, 1H), 6.31-6.23 (m, 2H), 5.73 (dd, J = 2.8, 9.1 Hz, 1H), 5.58 (dd, J = 4.8, 8.5 Hz, 1H), 4.24-4.16 (m, 2H), 4.08-3.98 (m, 2H), 3.96 (s, 3H), 2.30 (s, 3H); 498.3 [M + H]⁺ 1.19 20

N-(5-((6-((R)-3- (3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)(methylamino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 7.99 (s, 1H), 7.05 (s, 2H), 6.93 (s, 1H), 6.89-6.77 (m, 1H), 6.60-6.33 (m, 3H), 5.89-5.75 (m, 1H), 5.62-5.42 (m, 1H), 4.19-4.07 (m, 1H), 3.99-3.93 (m, 1H), 3.92 (s, 3H), 3.47-3.35 (m, 2H), 3.20-3.08 (m, 2H), 2.89-2.80 (m, 1H), 2.77 (s, 6H), 2.71 (s, 3H), 2.40-2.25 (m, 1H); 554.3 [M + H]⁺ 1.23 21

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine- 1-yl)phenyl)acrylamide ′H NMR (400 MHz, Methanol-d₄) δ 8.33 (s, 1H), 8.17 (s, 1H), 7.05 (s, 2H), 6.93 (s, 1H), 6.88-6.74 (m, 1H), 6.59-6.42 (m, 2H), 6.40-6.28 (m, 1H), 5.85-5.72 (m, 1H), 5.61-5.41 (m, 1H), 4.21-4.05 (m, 1H), 4.01-3.91 (m, 1H), 3.88 (s, 3H), 3.10-3.01 (m, 4H), 3.01-2.91 (m, 4H), 2.89-2.74 (m, 1H), 2.62 (s, 3H), 2.40- 2.22 (m, 1H); 552.3 [M + H]⁺ 1.20 22

N-(2-((2- (dimethylamino)eth yl)(methyl)amino)- 5-((6-((R)-3-(3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 536.3 [M + H]⁺ 1.17 23

N-(5-((6-((R)-3-(3- fluorophenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide 534.3 [M + H]⁺ 1.13 24

N-(2-((2- (dimethylamino)ethyl)- (methyl)amino)-4- methoxy-5-((6-((R)-3- (3-methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.48 (s, 1H), 8.83 (d, J = 2.9 Hz, 1H), 8.29 (d, J = 2.1 Hz, 1H), 7.70(s, 1H), 7.25 (td, J = 8.3, 2.0 Hz, 1H), 7.02 (dd, J = 4.3, 2.0 Hz, 2H), 6.81 (d, J = 10.2 Hz, 1H), 6.76 (d, J = 9.4 Hz, 1H), 6.74 (s, 1H), 6.67 (d, J = 2.5 Hz, 1H), 6.45- 6.35 (m, 1H), 5.70 (dd, J = 10.1, 2.1 Hz, 1H), 5.65 (dd, J = 8.6, 4.4 Hz, 1H), 4.16 (td, J = 7.9, 4.4 Hz, 1H), 4.12- 4.04 (m, 1H), 3.84 (d, J = 2.0 Hz, 3H), 3.80 (d, J = 1.5 Hz, 3H), 3.06 (d, J = 7.1 Hz, 2H), 2.87 (t, J = 5.9 Hz, 2H), 2.76 (tt, J = 8.1, 4.3 Hz, 1H), 2.66 (d, J = 1.9 Hz, 3H), 2.57 (s, 6H), 2.38 (dtd, J = 12.2, 8.0, 4.6 Hz, 1H); 548.3 [M + H]⁺ 1.11 25

N-(4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.71 (s, 1H), 8.44 (s, 1H), 8.27 (d, J = 0.9 Hz, 1H), 7.29 (s, 1H), 7.25 (t, J = 8.1 Hz, 1H), 7.03-6.99 (m, 2H), 6.83- 6.76 (m, 2H), 6.57 (s, 1H), 6.41- 6.27 (m, 2H), 5.76 (dd, J = 8.9, 2.6 Hz, 1H), 5.64 (dd, J = 8.6, 4.5 Hz, 1H), 4.13 (dd, J = 7.9, 4.4 Hz, 1H), 4.03 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.80 (s, 3H), 3.07-3.00 (m, 4H), 2.93 (d, J = 6.2 Hz, 4H), 2.80-2.73 (m, 1H), 2.54 (s, 3H), 2.41-2.35 (m, 1H); 546.3 [M + H]⁺ 1.33 26

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.20-8.11 (m, 2H), 7.15-7.08 (m, 3H), 6.82 (s, 1H), 6.69-6.61 (m, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.1,2.0 Hz, 1H), 5.56 (dd, J = 8.7, 4.9 Hz, 1H), 4.16-4.10 (m, 1H), 3.83 (d, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.16- 2.99 (m, 3H), 2.76 (dd, J = 8.1,4.0 Hz, 1H), 2.68 (d, J = 12.6 Hz, 2H), 2.58-2.52 (m, 3H), 2.38-2.21 (m, 6H), 2.16 (s, 3H), 1.88-1.80 (m, 2H), 1.71 (dd, J = 12.8, 9.2 Hz, 2H); 635.3 [M + H]⁺ 1.16 27

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₆) δ 8.05 (d, J = 0.8 Hz, 1H), 7.85 (s, 1H), 7.16 (t, J = 7.9 Hz, 1H), 6.85-6.77 (m, 3H), 6.74 (ddd, J = 8.4, 2.6, 1.0 Hz, 1H), 6.42 (dd, J = 17.0, 10.2 Hz, 1H), 6.27 (dd, J = 17.0, 1.6 Hz, 1H), 5.90 (s, 1H), 5.72 (d, J = 10.1 Hz, 1H), 5.33 (s, 1H), 4.66-4.56 (m, 2H), 4.24 (dd, J = 7.6, 4.4 Hz, 2H), 4.07- 3.98 (m, 1H), 3.79 (d, J = 8.8 Hz, 2H), 3.72 (s, 3H), 3.68 (s, 3H), 3.51 (d, J = 13.4 Hz, 2H), 2.90-2.68 (m, 4H), 2.32 (dd, J = 12.9, 5.7 Hz, 2H), 2.12 (d, J = 15.6 Hz, 4H), 1.84 (d, J = 3.7 Hz, 2H); 628.3 [M + H]⁺ 1.14 28

N-(2-((2- (dimethylamino)- ethyl)methyl)- amino)-5-((6- ((R)-3- phenylisoxazol- idine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.83 (s, 1H), 9.97 (s, 1H), 9.15 (s, 1H), 8.32 (d, J = 4.5 Hz, 1H), 8.25 (s, 1H), 7.44-7.14 (m, 5H), 6.78 (dd, J = 16.2, 10.0 Hz, 1H), 6.29 (d, J = 13.6 Hz, 2H), 5.85-5.76 (m, 1H), 5.51(s, 1H), 4.26 (s, 1H), 4.05-3.88 (m, 2H), 3.52-3.44 (m, 3H), 3.17 (s, 3H), 3.13-3.05 (m, 4H), 2.82 (s, 3H), 2.37-2.23 (m, 2H),; 488.3 [M + H]⁺ 1.11 29

N-(2-(4- methylpiperazine- 1-yl)-5-((6- ((R)-3- phenylisoxazol- idine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.13 (s, 1H), 8.22 (d, J = 4.2 Hz, 1H), 8.11 (s, 1H), 7.38 (d, J = 4.9 Hz, 5H), 7.28 (s, 1H), 6.90 (d, J = 3.9 Hz, 1H), 6.67 (s, 1H), 6.20 (s, 2H), 5.74 (d, J = 10.4 Hz, 1H), 5.51 (d, J = 6.6 Hz, 1H), 4.22 (s, 1H), 4.00-3.90 (m, 2H), 3.70-3.59 (m, 4H), 2.85 (dd, J = 15.9, 5.7 Hz, 4H), 2.34- 2.23 (m, 2H), 2.05 (s, 3H),; 486.3 [M + Hf 1.08 30

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiper- idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.73 (s, 1H), 10.22 (s, 1H), 9.26 (s, 1H), 8.34 (s, 1H), 7.88 (s, 1H), 7.17 (tt, J = 9.3, 2.4 Hz, 1H), 7.10 (h, J = 4.5 Hz, 2H), 6.69 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.79-5.72 (m, 1H), 5.55 (dd, J = 8.6, 5.4 Hz, 1H), 4.05 (d, J = 7.7 Hz, 1H), 4.00-3.96 (m, 4H), 3.81 (s, 3H), 3.43 (d, J = 12.0 Hz, 2H), 3.24 (d, J = 11.4 Hz, 2H), 3.15 (d, J = 12.3 Hz, 2H), 2.93 (qd, J = 7.7, 3.4 Hz, 1H), 2.85-2.74 (m, 2H), 2.26-2.16 (m, 2H), 2.15-1.99 (m, 2H), 1.65-1.54 (m, 1H), 1.53-1.37 (m, 1H), 1.30-1.19 (m, 1H), 0.85 (td, J = 8.0, 7.3, 3.1 Hz, 1H),; 622.4 [M + H]⁺ 1.23 31

N-(5-((6-((R)-3- (3-fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (4-methylpiperazine- 1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.45 (s, 1H), 9.33 (s, 1H), 8.34 (s, 1H), 7.85 (s, 1H), 7.42 (td, J = 8.0, 5.9 Hz, 1H), 7.23-7.06 (m, 3H), 6.94(S, 1H), 6.75 (dd, J = 16.8, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 1H), 6.13- 6.03 (m, 1H), 5.76 (dd, J = 10.0, 2.0 Hz, 1H), 5.55 (dd, J = 8.4, 5.4 Hz, 2H), 4.08 (q, J = 7.7 Hz, 2H), 3.80 (s, 3H), 3.79-3.70 (m, 4H), 3.61 (q, J = 14.1, 11.7 Hz, 5H), 3.48 (d, J = 16.4 Hz, 1H), 3.25 (d, J = 11.3 Hz, 2H), 3.15 (d, J = 7.9 Hz, 1H), 2.96 (qq, J = 7.3, 4.4 Hz, 2H), 2.84 (s, 5H), 2.32 (dtd, J = 12.6, 7.5, 5.2 Hz, 1H), 2.17 (q, J = 12.3 Hz, 4H), 1.67- 1.49 (m, 4H),; 617.4 [M + H]⁺ 1.09 32

N-(4-methoxy- 2-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2- yl)-5-((6-((R)-3- phenylisoxazol- idine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide 528.3 [M + H]⁺ 1.08 33

N-(2-((1R, 4R)- 2-oxa-5- azabicyclo[2.2.1]heptane-5-yl)- 4-methoxy-5- ((6((R)-3- phenylisoxazol- idine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.10 (s, 1H), 7.41-7.34 (m, 4H), 7.33-7.27 (m, 1H), 7.16 (s, 1H), 6.53-6.42 (m, 2H), 6.38 (dd, J = 17.0, 2.2 Hz, 1H), 5.95 (s, 1H), 5.82 (dd, J = 9.8, 2.1 Hz, 1H), 5.51 (s, 1H), 4.61 (s, 1H), 4.50-4.39 (m, 2H), 4.25-4.16 (m, 1H), 4.10 (d, J = 7.6 Hz, 1H), 3.93-3.88 (m, 1H), 3.81 (s, 3H), 3.65 (dd, J = 9.6, 1.7 Hz, 1H), 3.35 (d, J = 1.7 Hz, 1H), 3.09- 2.98 (m, 2H), 2.51-2.40 (m, 1H), 2.07- 2.02 (m, 1H), 1.99-1.95 (m, 1H); 515.2 [M + H]⁺ 1.15 34

N-(2-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]heptane-5-yl)- 4-methoxy-5- ((6-((R)-3- phenylisoxazol- idine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.11 (s, 1H), 7.49-7.40 (m, 3H), 7.35 (t, J = 7.6 Hz, 2H), 7.26 (t, J = 7.3 Hz, 1H), 6.56 (s, 1H), 6.49 (dd, J = 10.1, 17.0 Hz, 1H), 6.36 (dd, J = 1.8, 17.1 Hz, 1H), 6.27 (d, J = 3.2 Hz, 1H), 5.79 (dd, J = 1.8, 10.1 Hz, 1H), 5.52 (dd, J = 4.6, 8.5 Hz, 1H), 4.18-4.08 (m, 3H), 4.03- 3.91 (m, 2H), 3.86 (s, 4H), 3.55-3.48 (m, 1H), 3.17-3.08 (m, 2H), 2.87-2.72 (m, 2H), 2.41-2.27 (m, 1H); 515.2 [M + H]⁺ 1.24 35

N-(4-methoxy- 2-(3-methyl-3,6- diazabicyclo[3.1.1]heptane-6- yl)-5-((6-((R)-3- phenylisoxazol- idine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.09 (s, 1H), 7.42 (d, J = 7.3 Hz, 2H), 7.33 (dd, J = 7.7, 15.3 Hz, 3H), 7.28-7.17 (m, 1H), 6.46- 6.32 (m, 2H), 6.29-6.25 (m, 2H), 5.76 (dd, J = 2.5, 9.4 Hz, 1H), 5.51 (dd, J = 4.6, 8.7 Hz, 1H), 4.38-4.30 (m, 2H), 4.14- 4.04 (m, 1H), 3.93 (q, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.19-3.11 (m, 2H), 3.06-2.96 (m, 2H), 2.82-2.71 (m, 1H), 2.65 (q, J = 6.8 Hz, 1H), 2.38-2.28 (m, 4H), 2.09-2.00 (m, 1H); 528.2 [M + H]⁺ 1.03 36

N-(2-((2- (dimethylamino) ethyl)(methyl)- amino)-4- methoxy-5-((6- ((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.11 (s, 1H), 8.95 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.36 (d, J = 0.9 Hz, 1H), 7.71 (dd, J = 8.1,2.4 Hz, 1H), 7.12 (d, J = 8.0 Hz, 1H), 7.05 (s, 1H), 6.80 (s, 1H), 6.77-6.75 (m, 1H), 6.40 (dd, J = 17.0, 2.1 Hz, 1H), 6.31 (dd, J = 17.0, 9.8 Hz, 1H), 5.70 (ddd, J = 16.4, 9.0, 3.1 Hz, 2H), 4.18-4.09 (m, 2H), 3.84 (s, 3H), 2.88 (dt, J = 5.0, 2.4 Hz, 2H), 2.71 (s, 3H), 2.53 (s, 3H), 2.35-2.31 (m, 4H), 2.28 (s, 6H); 533.3 [M + H]⁺ 1.35 37

N-(5-((6-((R)-3- (4-chlorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino) ethyl)(methyl)- amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 8.06 (s, 1H), 7.40 (dd, J = 35.4, 8.1 Hz, 4H), 6.96 (s, 1H), 6.65-6.54 (m, 1H), 6.52- 6.39 (m, 2H), 5.85 (dd, J = 10.2, 1.5 Hz, 1H), 5.57-5.50 (m, 1H), 4.16 (td, J = 7.8, 4.6 Hz, 1H), 3.99 (d, J = 7.9 Hz, 1H), 3.93 (s, 3H), 3.42 (t, J = 5.7 Hz, 2H), 3.33 (dt, J = 3.1, 1.6 Hz, 3H), 3.18 (d, J = 13.3 Hz, 2H), 2.80 (d, J = 4.1 Hz, 6H), 2.73 (s, 3H), 2.34 (dt, J = 12.4, 7.5 Hz, 1H); 552.5 [M + H]⁺ 1.53 38

N-(5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine-1- yl)phenyl)acrylamide 604.5 [M + H]⁺ 1.17 39

N-(2-((2- (dimethylamino)- ethyl)(methyl)amino)- -5-((6-((R)-3-(4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 536.3[M + H]⁺ KSS-005-068 40

N-(4-methoxy-5- ((6-((R)-3-(3- methoxyphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- methylpiperazine- 1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.17 (s, 1H), 7.93 (s, 1H), 7.28 (t, J = 7.8 Hz, 1H), 6.95-6.84 (m, 5H), 6.59 (dd, J = 16.9, 10.2 Hz, 1H), 6.40 (dd, J = 17.0, 1.6 Hz, 1H), 5.84 (dd, J = 10.2, 1.6 Hz, 1H), 5.42 (s, 1H), 4.43 (td, J = 7.5, 4.4 Hz, 1H), 4.19 (td, J = 8.2, 6.6 Hz, 1H), 3.82 (s, 3H), 3.79 (s, 3H), 3.43 (s, 4H), 3.26 (d, J = 12.3 Hz, 5H), 3.02 (dddd, J = 11.1,8.3, 6.5, 4.3 Hz, 3H), 2.92 (s, 3H), 2.86 (d, J = 11.9 Hz, 2H), 2.50- 2.41 (m, 1H), 2.20-2.11 (m, 2H), 2.02- 1.89 (m, 3H); 629.3 [M + H]⁺ 1.11 41

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)- 4-methoxy-5- ((6((R)-3-(6- methylpyridine-3- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 628.4 [M + H]⁺ 0.78 42

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5- ((6((R)-3-(6- methylpyridine-3- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 545.3 [M + H]⁺ 0.74 43

N-(4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino-2- morpholinophe nyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.95 (d, J = 23.3 Hz, 1H), 9.47 (s, 1H), 9.24 (s, 1H), 8.76 (d, J = 2.1 Hz, 1H), 8.47 (dd, J = 8.4, 2.2 Hz, 1H), 8.30 (d, J = 3.1 Hz, 1H), 7.93 (d, J = 8.4 Hz, 1H), 6.99-6.80 (m, 1H), 6.67 (dd, J = 17.0, 10.2 Hz, 1H), 6.43-6.11 (m, 2H), 5.82- 5.63 (m, 2H), 3.84-3.81 (m, 4H), 2.92 (t, J = 4.5 Hz, 3H), 2.76 (s, 3H), 2.50 (q, J = 1.9 Hz, 8H),; 518.5 [M + H]⁺ 1.73 44

N-(4-methoxy- 2-(4- methylpiperazine- 1-yl)-5-((6- ((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.18 (s, 1H) 9.15 (s, 1H), 8.75 (d, J = 2.1 Hz, 1H), 8.45 (dd, J = 8.5, 2.1 Hz, 1H), 8.27 (s, 1H), 8.15 (s, 1H), 7.91 (d, J = 8.4 Hz, 1H), 6.91- 6.69 (m, 2H), 6.34 (s, 1H), 6.23 (dd, J = 17.0, 2.0 Hz, 1H), 5.80-5.68 (m, 2H), 4.26 (dd, J = 7.8, 4.1 Hz, 2H), 4.01 (q, J = 7.8 Hz, 2H), 3.84 (s, 3H), 3.60 (ddd, J = 9.0, 6.4, 3.1 Hz, 1H), 3.48 (d, J = 11.4 Hz, 2H), 3.17 (d, J = 6.3 Hz, 4H), 2.81 (d, J = 4.6 Hz, 3H), 2.74 (s, 3H), 2.39 (dq, J = 8.7, 4.9, 3.8 Hz, 1H),; 531.5 [M + H]⁺ 1.28 45

N-(4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-morpholinopiper- idine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.0, 2.4 Hz, 1H), 7.12 (d, J = 8.0 Hz, 1H), 6.95 (s, 1H), 6.73 (d, J = 12.7 Hz, 2H), 6.41-6.19 (m, 2H), 5.79- 5.67 (m, 2H), 4.20-4.05 (m, 2H), 3.84 (s, 3H), 3.77 (t, J = 4.6 Hz, 4H), 3.12-3.02 (m, 2H), 2.83-2.67 (m, 3H), 2.62 (t, J = 4.7 Hz, 4H), 2.54 (s, 3H), 2.34 (m, 2H), 2.08 (d, J = 12.5 Hz, 2H), 1.65 (m, 2H),; 601.7 [M + H]⁺ 1.04 46

N-(2-(4- cyclopropylpiper- azine-1-yl)-4- methoxy-5-((6- ((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.63-8.54 (m, 2H), 8.37 (s, 1H), 7.70 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.96 (s, 1H), 6.79 (s, 1H), 6.72 (s, 1H), 6.35-6.29 (m, 2H), 5.75 (dd, J = 9.7,1.8 Hz, 1H), 5.73-5.70 (dd, J = 8.5, 4.3 Hz, 1H), 4.16-4.09 (m, 2H), 3.81 (s, 3H), 2.91- 2.73 (m, 9H), 2.54 (s, 3H), 2.41-2.32 (m, 1H), 1.73-1.72(m, 1H), 0.52 (dd,J = 6.5, 4.4 Hz, 2H), 0.47-0.46 (m, 2H),; 557.6 [M + H]⁺ 1.03 47

N-(4-methoxy- 2-(4-(4- methylpiperazine- 1-yl)piperidine-1- yl)-5-((6((R)-3- (6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.78 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.43-8.36 (m, 2H), 7.70 (dd, J = 8.1,2.3 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.93 (s, 1H), 6.74-6.71 (m, 2H), 6.38-6.21 (m, 1H), 5.74-5.68 (m, 2H), 4.15 (td, J = 8.1, 4.8 Hz, 1H), 4.11-4.03 (m, 1H), 3.91-3.86 (m, 1H), 3.84 (s, 3H), 3.06 (d, J = 10.9 Hz, 2H), 2.85-2.67 (m, 8H), 2.61 (s, 2H), 2.54 (s, 3H), 2.37 (m, 4H), 2.17 (s, 1H), 2.07 (d, J = 11.8 Hz, 2H), 1.70 (d, J = 12.9 Hz, 2H),; 614.6 [M + H]⁺ 1.00 48

N-(4-methoxy-2- (4-(1-methylpiperidine- 4-yl)piperazine- 1-yl)-5-((6-((R)- 3-(6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.57 (m, 2H), 8.37 (s, 1H), 7.70 (dd, J = 8.0, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.94 (s, 1H), 6.81 (s, 1H), 6.72 (s, 1H), 6.36 (dd, J = 17.2, 1.6 Hz, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.74 (m, 1H), 5.72-5.69 (m, 1H), 4.17-4.10 (m, 2H), 3.82 (s, 3H), 2.97 (d, J = 11.2 Hz, 2H), 2.91 (m, 4H), 2.82- 2.71 (m, 4H), 2.54 (s, 3H), 2.29 (m, 3H), 2.17 (s, 3H), 2.01 (t, J = 11.7 Hz, 2H), 1.87 (d, J = 12.6 Hz, 2H), 1.73-1.58 (m, 2H),; 614.5 [M + H]⁺ 0.90 49

N-(2-(4-acetylpiperazine- 1-yl)-4-methoxy-5-((6- ((R)-3-(6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.95 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.44 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.70 (dd, J = 8.1, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.98 (s, 1H), 6.72 (d, J = 3.9 Hz, 2H), 6.42-6.33 (m, 1H), 6.26 (dd, J = 16.9, 10.1 Hz, 1H), 5.76 (dd, J = 10.0, 1.5 Hz, 1H), 5.72 (dd, J = 8.7, 4.5 Hz, 1H), 4.17 (td, J = 8.0, 4.4 Hz, 1H), 4.10 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.67- 3.64 (m, 2H), 2.81-2.74 (m, 2H), 2.88 (m, 4H), 2.81-2.74 (m, 1H), 2.54 (s, 3H), 2.37 (dtd, J = 12.4, 8.1,4.5 Hz, 1H), 2.17 (s, 3H),; 559.5 [M + H]⁺ 1.17 50

N-(2-(4- dimethylaminopip- eridine-1-yl)-4- methoxy-5-((6- ((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 6 8.45 (s, 1H), 8.36 (d, J = 1.1 Hz, 1H), 7.70 (dd, J = 8.0, 2.3 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.94 (s, 1H), 6.74 (d, J = 2.6 Hz, 1H), 6.71 (d, J = 7.3 Hz, 1H), 6.39-6.33 (m, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.77-5.72 (m, 1H), 5.73- 5.68 (m, 1H), 4.16(m, 1H), 4.09 (m, 1H), 3.84 (s, 3H), 3.08 (d, J = 11.3 Hz, 2H), 2.84 (dd, J = 12.0, 5.9 Hz, 1H), 2.80-2.69 (m, 3H), 2.54 (s, 3H), 2.45 (d, J = 4.6 Hz, 6H), 2.39-2.32 (m, 1H), 2.10 (d, J = 12.5 Hz, 2H), 1.76 (t, J = 11.5 Hz, 2H),; 559.5 [M + H]⁺ 1.03 51

N-(2-((1R,4R)-5- ethyl-2,5- diazabicyclo[2.2.1]heptane-2-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.58- 8.53 (m, 2H), 8.34 (s, 1H), 8.00 (s, 1H), 7.70 (dd, J = 8.1, 2.4 Hz, 1H), 7.12 (d, J = 8.0 Hz, 1H), 6.89 (s, 1H), 6.68 (d, J = 16.4 Hz, 2H), 6.38-6.26 (m, 2H), 5.72 (m, 2H), 4.20- 4.03 (m, 2H), 3.85 (s, 3H), 3.65-3.54 (m, 2H), 3.07 (dd, J = 9.8, 2.4 Hz, 1H), 2.92- 2.81 (m, 1H), 2.86-2.72 (m, 3H), 2.54 (s, 3H), 2.35 (dtt, J~ 12.3, 8.6, 4.4 Hz, 1H), 1.33- 1.30 (m, 2H), 1.92 (q, J = 9.9Hz, 2H), 1.15 (t, J = 7.2 Hz, 3H),; 557.5 [M + H]⁺ 0.92 52

N-(4-methoxy-2- (4-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2- yl)piperidine-1- yl)-5-((6-((R)-3- phenylisoxazolidine-2- yl)pyrimidine-1- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.62 (s, 1H), 9.17 (s, 1H), 8.23 (s, 1H), 7.97 (s, 1H), 7.40-7.32 (m, 4H), 7.30-7.24 (m, 1H), 6.87 (d, J = 19.3 Hz, 1H), 6.55(m, 1H), 6.28- 6.14 (m, 2H), 5.75 (d, J = 10.3 Hz, 1H), 5.52 (d, 1H), 4.74 (s, 1H), 4.48 (d, J = 20.0 Hz, 1H), 4.26-4.20 (m, 1H), 3.96 (d, J = 8.9 Hz, 2H), 3.81 (s, 3H), 3.21 (m, 4H), 2.92 (m, 5H), 2.67 (m, 4H), 2.36-2.25 (m, 2H), 2.07 (d, J = 25.9 Hz,; 4H), 611.6 [M + H]⁺ 1.35 53

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.08 (s, 1H), 7.77 (s, 1H), 7.26 (dd, J = 7.1, 1.4 Hz, 4H), 7.20 (s, 1H), 6.94 (s, 1H), 6.54 (dd, J = 17.0, 10.2 Hz, 1H), 6.33 (dd, J = 16.9, 1.6 Hz, 1H), 5.77 (d, J = 10.2 Hz, 1H), 5.35 (s, 1H), 4.66 (s, 1H), 4.59 (d, J = 12.7 Hz, 1H), 4.33 (t, J = 3.8 Hz, 1H), 4.14-4.05 (m, 2H), 3.75 (s, 3H), 3.55 (d, J = 11.5 Hz, 1H), 3.38 (d, J = 1.6 Hz, 1H), 3.29 (s, 2H), 3.04-2.88 (m, 3H), 2.37 (ddd, J = 11.8, 8.1, 6.1 Hz, 2H), 2.19 (s, 3H), 2.05 (s, 3H), 1.69-1.58 (m, 1H), 1.45 (s, 1H); 598.3 [M + H]⁺ 1.1 54

N-(2-(4-((1S,4S)- 2-oxa-5- oxabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.04 (s, 1H), 7.76 (s, 1H), 7.57 (ddd, J = 37.8, 5.8, 3.4 Hz, 1H), 7.28-7.23 (m, 3H), 7.23- 7.16 (m, 2H), 6.83 (s, 1H), 6.53 (d, J = 13.9 Hz, 1H), 6.29 (dd, J = 16.9, 1.6 Hz, 1H), 5.73 (d, J = 10.0 Hz, 1H), 5.39 (s, 1H), 4.68- 4.54 (m, 2H), 4.33 (d, J = 5.6 Hz, 1H), 4.22 (d, J = 10.7 Hz, 1H) 4.12-4.05 (m, 2H), 3.78 (s, 1H), 3.72 (s, 3H), 3.54 (d, J = 11.6 Hz, 1H), 3.38 (d, J = 2.8 Hz, 1H), 2.93 (d, J = 6.8 Hz, 1H), 2.85-2.74 (m, 2H), 2.40-2.31 (m, 2H), 2.23-2.09 (m, 4H), 1.97 (d, J = 12.3 Hz, 3H); 598.3 [M + H]⁺ 1.1 55

N-(2-(4-(4- ethylpiperazine- 1-yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 613.4 [M + H]⁺ 1.07 56

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.46 (d, J = 7.4 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.23 (d, J = 7.5 Hz, 1H), 6.91 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.76-5.71 (m, 1H), 5.71-5.67 (m, 1H), 4.15 (td, J = 8.0,4.5 Hz, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.05 (d, J = 11.3 Hz, 2H), 2.78- 2.64 (m, 8H), 2.37 (m, 4H), 2.08 (d, J = 12.4 Hz, 2H), 1.66 (m, 4H), 0.50-0.38 (m, 4H); 625.59 [M + H]⁺ 1.56 57

N-(2-(4-(4- (cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.04-6.98 (m, 2H), 6.97 (s, 1H), 6.77- 6.64 (m, 3H), 6.42-6.23 (m, 2H), 5.74 (dd, J = 1.6, 10.0 Hz, 1H), 5.67 (dd, J = 4.5, 8.7 Hz, 1H), 4.15 (td, J = 4.2, 8.0 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.11-3.01 (m, 2H), 2.82-2.61 (m, 10H), 2.43-2.28 (m, 2H), 2.12-2.04 (m, 2H), 1.74-1.61 (m, 3H), 0.51-0.40 (m, 4H); 661.3 [M + H]⁺ 1.23 58

N-(5-((6-((R)-3- (4- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.74 (s, 1H), 9.16 (s, 1H), 8.27 (s, 2H), 7.95 (s, 1H), 7.44- 7.33 (m, 7H), 6.88 (s, 2H), 6.68 (dd, J = 17.0, 10.3 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 6.10 (s, 1H), 5.82-5.72 (m, 1H), 5.52 (dd, J = 8.4, 5.4 Hz, 2H), 3.88 (q, J = 5.2, 4.0 Hz, 2H), 3.80 (s, 9H), 3.20 (d, J = 11.7 Hz, 5H), 2.96-2.84 (m, 3H), 2.78 (t, J = 11.5 Hz, 4H), 2.34-2.21 (m, 3H), 2.22-1.95 (m, 8H), 1.03 (d, J = 24.0 Hz, 3H), 0.89-0.69 (m, 4H); 659.56 [M + H]⁺ 1.34 59

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide; ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (d, J = 3.1 Hz, 1H), 8.07 (s, 1H), 7.45 (dd, J = 2.2, 7.1 Hz, 1H), 7.37-7.25 (m, 1H), 7.12 (t, J = 8.8 Hz, 1H), 6.81 (s, 1H), 6.45 (dd, J = 10.2, 17.0 Hz, 1H), 6.34 (s, 1H), 6.26 (d, J = 16.8 Hz, 1H), 5.70 (d, J = 10.3 Hz, 1H), 5.47- 5.37 (m, 1H), 4.05 (td, J = 4.3, 8.0 Hz, 1H), 3.87 (q, J = 8.0 Hz, 1H), 3.77 (s, 3H), 3.13- 3.05 (m, 2H), 2.97-2.88 (m, 3H), 2.83-2.66 (m, 8H), 2.23 (dtt, J = 3.5, 8.1, 12.6 Hz, 1H), 2.10-1.99 (m, 2H), 1.83-1.68 (m, 3H), 0.83- 0.75 (m, 1H), 0.50-0.42 (m, 2H), 0.42- 0.34 (m, 2H); 677.3 [M + H]⁺ 1.32 60

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,4-dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide; ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (d, J = 2.9 Hz, 1H), 8.06 (s, 1H), 7.39 (t, J = 8.0 Hz, 1H), 7.27 (dd, J = 1.6, 8.6 Hz, 1H), 6.81 (s, 1H), 6.45 (dd, J = 10.2, 16.9 Hz, 1H), 6.37 (s, 1H), 6.26 (d, J = 16.6 Hz, 1H), 5.78-5.56 (m, 2H), 4.06 (td, J = 3.9, 7.9 Hz, 1H), 3.88 (q, J = 8.0 Hz, 1H), 3.78 (s, 3H), 3.12-3.03 (m, 2H), 2.95-2.83 (m, 3H), 2.83-2.65 (m, 8H), 2.17 (dtd, J = 4.8, 8.0, 12.8 Hz, 1H), 2.08- 1.97 (m, 2H), 1.81-1.66 (m, 3H), 0.83- 0.78 (m, 1H), 0.51-0.42 (m, 2H), 0.41-0.33 (m, 2H); 711.3 [M + H]⁺ 1.52 61

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide; ¹H NMR (400 MHz, Methanol-d₄) δ 8.19 (d, J = 8.8 Hz, 1H), 8.07 (s, 1H), 7.14 (ddt, J = 2.8, 5.9, 8.8 Hz, 1H), 7.04 (td, J = 4.4, 9.3 Hz, 1H), 6.92(tt, J = 3.6, 8.0 Hz, 1H), 6.81 (s, 1H), 6.53-6.34 (m, 2H), 6.26 (d, J = 16.7 Hz, 1H), 5.76-5.60 (m, 2H), 4.04 (td, J = 4.2, 8.0 Hz, 1H), 3.88 (q. J = 8.0 Hz, 1H), 3.78 (s, 3H), 3.13-3.04 (m, 2H), 2.97-2.84 (m, 3H), 2.84-2.65 (m, 8H), 2.16 (dtd, J = 4.6, 8.0, 12.5 Hz, 1H), 2.08-1.98 (m, 2H), 1.82-1.66 (m, 3H), 0.83-0.75 (m, 1H), 0.51- 0.42 (m, 2H), 0.40-0.34 (m, 2H); 661.3 [M + H]⁺ 1.38 62

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (d, J = 8.5 Hz, 1H), 8.17(s, 1H), 7.49 (t, J = 7.3 Hz, 1H), 7.40 (t, J = 7.6 Hz, 1H), 7.16 (t, J = 7.9 Hz, 1H), 6.92 (s, 1H), 6.56 (dd, J = 10.2, 16.9 Hz, 1H), 6.48 (d, J = 6.0 Hz, 1H), 6.37 (d, J = 16.8 Hz, 1H), 5.80 (t, J = 9.9 Hz, 2H), 4.16 (td, J = 4.2, 8.0 Hz, 1H), 3.99 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.24-3.16 (m, 2H), 3.08-2.95 (m, 3H), 2.95-2.76 (m, 8H), 2.32-2.22 (m, 1H), 2.19-2.10 (m, 2H), 1.94-1.77 (m, 3H), 0.95-0.88 (m, 1H), 0.61-0.53 (m, 2H), 0.52-0.44 (m, 2H); 677.3 [M + H]⁺ 1.48 63

N-(5-((6-((R)-3- (4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.18 (d, J = 0.9 Hz, 1H), 7.45 (t, J = 7.9 Hz, 1H), 7.34 (dd, J = 2.0, 10.5 Hz, 1H), 7.27 (dd, J = 2.0, 8.3 Hz, 1H), 6.92 (s, 1H), 6.57 (dd, J = 10.3, 17.0 Hz, 1H), 6.46 (d, J = 1.0 Hz, 1H), 6.36 (dd, J = 1.5, 17.0 Hz, 1H), 5.81 (dd, J = 1.5, 10.3 Hz, 1H), 5.56 (dd, J = 4.7, 8.6 Hz, 1H), 4.15 (td, J = 4.1, 7.9 Hz, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.22-3.08 (m, 2H), 2.87-2.72 (m, 11H), 2.57-2.43 (m, 1H), 2.34 (dtd, J = 4.5, 8.0, 12.6 Hz, 1H), 2.17-2.03 (m, 2H) 1.86- 1.66 (m, 3H), 0.61-0.48 (m, 2H), 0.48- 0.38 (m, 2H); 677.3 [M + H]⁺ 1.42 64

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3-fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.91 (s, 1H), 9.19 (s, 1H), 8.30 (s, 2H), 7.94 (s, 1H), 7.42 (td, J = 7.9, 6.0 Hz, 2H), 7.24-7.16 (m, 3H), 7.12 (td, J = 8.7, 2.7 Hz, 2H), 6.89 (s, 1H), 6.70 (dd, J = 17.0, 10.2 Hz, 2H), 6.25 (dd, J = 17.0, 1.9 Hz, 2H), 6.11 (s, 1H), 5.81-5.71 (m, 2H), 5.54 (dd, J = 8.5, 5.4 Hz, 2H), 3.89 (t, J = 6.1 Hz, 3H), 3.80 (s, 11H), 3.22 (d, J = 11.5 Hz, 5H), 2.92 (dtd, J = 12.2, 8.0, 7.5, 4.2 Hz, 3H), 2.79 (t, J = 11.7 Hz, 4H), 2.32 (dtd, J = 12.7, 7.6, 5.2 Hz, 2H), 2.23-1.96 (m, 8H), 1.13 (s, 4H), 0.91-0.72 (m, 4H); 643.59 [M + H]⁺ 1.34 65

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(3- methoxyphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 12.41 (s, 1H), 10.22 (s, 1H), 9.24 (s, 1H), 8.32 (s, 1H), 7.87 (s, 1H), 7.29 (t, J = 7.8 Hz, 1H), 6.89 (dt, J = 14.1,6.9 Hz, 4H), 6.72 (dd, J = 16.9, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.5 Hz, 1H), 5.76 (d, J = 11.5 Hz, 1H), 5.50- 5.44 (m, 1H), 4.33 (dd, J = 11.9, 7.4 Hz, 1H), 4.12-4.05 (m, 3H), 3.79 (s, 3H), 3.75 (s, 3H), 3.23 (d, J = 10.7 Hz, 2H), 3.00- 2.87 (m, 2H), 2.81 (t, J = 11.2 Hz, 2H), 2.32 (td, J = 12.7, 7.6 Hz, 1H), 2.22-2.06 (m, 4H), 1.61 (dd, J = 8.2, 4.5 Hz, 3H), 1.46- 1.38 (m, 3H), 1.19 (s, 2H), 0.87-0.81 (m, 2H); 655.62 [M + H]⁺ 1.13 66

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (4-fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.88 (s, 1H), 9.18 (s, 1H), 8.29 (s, 1H), 7.93 (s, 1H), 7.40 (dd, J = 8.6, 5.6 Hz, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.89 (s, 1H), 6.69 (dd, J = 17.0, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.08 (s, 1H), 5.76 (dd, J = 10.1,2.0 Hz, 1H), 5.52 (t, J = 7.1 Hz, 1H), 4.32-4.26 (m, 1H), 4.04 (d, J = 7.7 Hz, 3H), 3.80 (s, 3H), 3.71 (s, 4H), 3.41- 3.35 (m, 2H), 3.21 (d, J = 11.5 Hz, 2H), 2.90 (d, J = 9.0 Hz, 1H), 2.80 (d, J = 11.8 Hz, 2H), 2.34-2.24 (m, 2H), 2.16 (s, 2H), 2.06 (s, 1H), 1.65-1.56 (m, 1H), 1.48-1.40 (m, 1H), 1.11 (s, 2H), 0.81 (d, J = 7.0 Hz, 2H); 643.34 [M + H]⁺ 1.14 67

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.0, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.94 (s, 1H), 6.74 (s, 1H), 6.71 (s, 1H), 6.45-6.31 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.5 Hz, 1H), 5.72-5.68 (m,1H), 4.15-4.09 (m, 2H), 3.84 (s, 3H), 3.06 (d, J = 12.6 Hz, 2H), 2.74 (m, 8H), 2.54 (s, 3H), 2.36 (ddt, J = 16.1, 7.9, 4.5 Hz, 4H), 2.08 (d, J = 12.4 Hz, 2H), 1.75-1.62 (m, 4H), 0.52-0.39 (m, 4H); 640.63 [M + H]⁺ 0.85 68

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 8.07 (s, 1H), 7.01-6.91 (m, 2H), 6.81 (s, 1H), 6.73 (tt, J = 2.4, 9.1 Hz, 1H), 6.44 (dd, J = 10.2, 17.0 Hz, 1H), 6.35 (s, 1H), 6.25 (dd, J = 1.5, 17.0 Hz, 1H), 5.70 (d, J = 10.3 Hz, 1H), 5.46 (dd, J = 4.8, 8.7 Hz, 1H), 4.04 (td, J = 4.1, 7.9 Hz, 1H), 3.86 (q, J = 8.0 Hz, 1H), 3.77 (s, 3H), 3.14-3.03 (m, 3H), 2.88-2.66 (m, 11H), 2.55 (tt, J = 3.7, 11.4 Hz, 1H), 2.29-2.17 (m, 2H), 2.16-2.06 (m, 2H), 2.00-1.92 (m, 4H), 1.77-1.68 (m, 4H); 675.4 [M + H]⁺ 1.23 69

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(3- methoxyphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.66 (s, 1H), 10.27 (s, 1H), 9.27 (s, 1H), 8.32 (s, 1H), 7.87 (s, 1H), 7.29 (t, J = 7.8 Hz, 1H), 6.88 (dd, J = 12.2, 7.1 Hz, 4H), 6.74 (dd, J = 16.8, 10.2 Hz, 1H), 6.30-6.21 (m, 1H), 6.00 (s, 1H), 5.77 (d, J = 11.4 Hz, 1H), 5.52-5.42 (m, 1H), 4.33 (dd, J = 11.9, 7.4 Hz, 2H), 4.09 (dd, J = 15.1, 7.6 Hz, 4H), 3.79 (s, 3H), 3.75 (s, 3H), 3.66 (d, J = 12.2 Hz, 4H), 3.46 (d, J = 11.8 Hz, 2H), 3.24 (d, J = 10.6 Hz, 2H), 2.99-2.89 (m, 1H), 2.82 (t, J = 11.0 Hz, 2H), 2.45-2.28 (m, 3H), 2.19 (d, J = 7.8 Hz, 4H), 1.81-1.66 (m, 2H), 1.61 (dd, J = 7.5, 3.8 Hz, 2H), 1.44 (d, J = 2.7 Hz, 2H), 1.24 (s, 1H); 669.62 [M + H]⁺ 1.10 70

N-(5-((6-((R)- 3-(3-chloro- 2-fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.99 (s, 1H), 9.16 (s, 1H), 8.67 (t, J = 5.6 Hz, 1H), 8.24 (s, 1H), 8.02 (s, 1H), 7.58-7.48 (m, 1H), 7.43-7.35 (m, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.88 (s, 1H), 6.69 (ddd, J = 16.5, 10.4, 5.9 Hz, 2H), 6.25 (ddd, J = 17.1, 5.2, 2.0 Hz, 3H), 5.82 (dd, J = 10.3, 2.0 Hz, 1H), 5.78- 5.69 (m, 1H), 3.98 (d, J = 7.8 Hz, 1H), 3.81 (s, 3H), 3.69 (q, J = 7.4 Hz, 1H), 3.22-3.16 (m, 2H), 3.09-3.01 (m, 2H), 2.74 (d, J = 4.9 Hz, 8H), 2.42-2.32 (m, 1H), 2.19 (td, J = 14.7, 13.5, 6.9 Hz, 4H), 1.93-1.82 (m, 4H), 1.76 (dd, J = 20.2, 10.2 Hz, 2H),; 691.5 [M + H]⁺ 1.26 71

N-(5-((6-((R)- 3-(4-chloro- 3-fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.19 (s, 1H), 8.29 (d, J = 11.0 Hz, 1H), 8.03-7.88 (m, 1H), 7.59 (t, J = 8.1 Hz, 1H), 7.41 (d, J = 10.7 Hz, 1H), 7.25 (d, J = 8.3 Hz, 1H), 6.89 (d, J = 5.7 Hz, 1H), 6.69 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (d, J = 16.9 Hz, 1H), 6.14 (s, 1H), 5.76 (d, J = 10.2 Hz, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.37-4.19 (m, 1H), 3.81 (s, 5H), 3.75 (s, 4H), 3.20 (s, 3H), 2.89 (s, 2H), 2.77 (dd, J = 22.8, 11.2 Hz, 3H), 2.45- 2.26 (m, 4H), 2.19 (dd, J = 17.1, 9.1 Hz, 5H), 2.05 (d, J = 12.4 Hz, 2H), 1.74 (dt, J = 28.6, 9.7 Hz, 3H); 691.5 [M + H]⁺ 1.24 72

N-(2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 10.12 (s, 1H), 9.24 (s, 1H), 8.31 (s, 1H), 7.90 (s, 1H), 7.43 (q, J = 7.5 Hz, 1H), 7.16 (dt, J = 24.6, 8.5 Hz, 3H), 6.90 (s, 1H), 6.72 (dd, J = 16.9, 10.2 Hz, 1H), 6.26 (d, J = 17.0 Hz, 1H), 6.07 (s, 1H), 5.77 (d, J = 10.3 Hz, 1H), 5.60- 5.46 (m, 1H), 4.32 (q, J = 7.0 Hz, 2H), 4.07 (q, J = 7.6 Hz, 2H), 3.80 (s, 3H), 3.23 (d, J = 11.4 Hz, 4H), 2.95 (h, J = 6.8, 6.2 Hz, 2H), 2.80 (t, J = 11.6 Hz, 3H), 2.76 (dd, J = 22.8, 11.2 Hz, 3H), 2.46-2.28 (m, 3H), 2.21 (q, J = 10.9, 9.7 Hz, 5H), 2.15-2.00 (m, 2H), 1.74 (dt, J = 28.4, 9.9 Hz, 2H); 657.57 [M + H]⁺ 1.16 73

N-(5-((6-((R)- 3-(3-chloro- 4-fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclobutylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.94 (s, 1H), 9.20 (s, 1H), 8.30 (d, J = 2.2 Hz, 1H), 7.94 (s, 1H), 7.58 (dd, J = 7.1, 2.1 Hz, 1H), 7.43 (s, 1H), 7.41-7.35 (m, 2H), 6.90 (s, 1H), 6.70 (dd, J = 16.9, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.13 (s, 1H), 5.76 (dd, J = 9.9, 2.0 Hz, 1H), 5.53 (dd, J = 8.5, 5.4 Hz, 1H), 3.89 (t, J = 6.1 Hz, 7H), 3.80 (d, J = 3.2 Hz, 8H), 3.43 (d, J = 12.3 Hz, 6H), 3.22 (d, J = 11.7 Hz, 4H), 3.12 (qd, J = 7.3, 4.2 Hz, 1H), 2.92 (dt, J = 12.3, 5.4 Hz, 2H), 2.40 (t, J = 9.7 Hz, 3H), 2.36-2.13 (m, 8H), 1.75 (dq, J = 29.1, 10.0, 9.4 Hz, 3H), 1.28 (dd, J = 12.7, 6.7 Hz, 7H); 591.59 [M + H]⁺ 1.26 74

N-(2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3,4- dichloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.47 (s, 1H), 9.15 (s, 1H), 8.25 (s, 1H), 8.03 (s, 1H), 7.53 (dd, J = 8.5, 1.5 Hz, 1H), 7.43 (d, J = 8.0 Hz, 1H), 6.88 (s, 1H), 6.67 (dd, J = 16.9, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 2H), 5.75 (d, J = 11.0 Hz, 1H), 5.70 (dd, J = 8.7, 5.5 Hz, 1H), 4.28-4.24 (m, 1H), 3.99 (d, J = 7.6 Hz, 1H), 3.81 (s, 3H), 3.38 (q, J = 7.0 Hz, 5H), 3.21 (d, J = 11.4 Hz, 2H), 2.95-2.86 (m, 2H), 2.77 (d, J = 11.7 Hz, 2H), 2.42-2.33 (m, 3H), 2.31-2.24 (m, 2H), 2.20 (d, J = 10.0 Hz, 5H), 2.04 (d, J = 11.8 Hz, 2H) 1.82-1.65 (m, 3H); 725.28 [M + H]⁺ 1.44 75

N-(5-((6-((R)- 3-(4-chlorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4-cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.68 (s, 1H), 10.33 (s, 1H), 9.30 (s, 1H), 8.33 (s, 1H), 7.87 (s, 1H), 7.41 (dd, J = 24.5, 8.5 Hz, 4H), 6.92 (s, 1H), 6.75 (dd, J = 16.6, 10.3 Hz, 1H), 6.26 (dd, J = 17.0, 1.6 Hz, 1H), 6.05 (s, 1H), 5.77 (d, J = 11.7 Hz, 1H), 5.53 (dd, J = 7.8, 5.7 Hz, 1H), 4.36-4.29 (m, 3H), 4.12-4.05 (m, 4H), 3.81 (s, 3H), 3.66 (d, J = 12.5 Hz, 4H), 3.53-3.40 (m, 3H), 3.25 (d, J = 10.4 Hz, 2H), 3.01-2.90 (m, 1H), 2.84 (d, J = 10.6 Hz, 2H), 2.40 (dd, J = 19.8, 9.9 Hz, 2H), 2.35-2.25 (m, 1H), 2.20 (d, J = 7.7 Hz, 4H), 1.84-1.66 (m, 2H), 1.66-1.52 (m, 2H), 1.50- 1.41 (m, 1H), 1.23 (s, 1H); 673.60 [M + H]⁺ 1.23 76

N-(2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.79 (s, 1H), 9.17 (s, 1H), 8.28 (s, 1H), 7.95 (s, 1H), 7.43- 7.37 (m, 2H), 7.19 (s, 2H), 6.88 (s, 1H), 6.69 (dd, J = 17.0, 10.4 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.09 (s, 1H), 5.76 (d, J = 10.5 Hz, 1H), 5.52(t, J = 7.1 Hz, 1H), 4.29 (d, J = 4.6 Hz, 1H), 4.03 (d, J = 7.8 Hz, 1H), 3.80 (s, 3H), 3.64 (d, J = 12.5 Hz, 4H), 3.23 (s, 3H), 2.91 (s, 1H), 2.79 (s, 2H), 2.39 (t, J = 9.6 Hz, 2H), 2.34-2.27 (m, 2H), 2.19 (t, J = 11.1 Hz, 5H), 1.83-1.67 (m, 3H), 1.62 (d, J = 5.0 Hz, 2H), 1.43 (d, J = 5.1 Hz, 2H); 657.36 [M + H]⁺ 1.12 77

N-(2-(4-(4- cyclobutylpiperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.95 (s, 1H), 9.21 (s, 1H), 8.30 (s, 1H), 7.95 (s, 1H), 7.32 (td, J = 9.3, 4.5 Hz, 1H), 7.25-7.12 (m, 3H), 6.90 (s, 1H), 6.71 (dd, J = 16.9, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.19(s, 1H), 5.81-5.72 (m, 2H), 5.66 (dd, J = 8.7, 5.6 Hz, 1H), 3.89 (t, J = 6.2 Hz, 1H), 3.81 (s, 4H), 3.53-3.33 (m, 4H), 3.27-3.18 (m, 2H), 3.11 (tt, J = 7.4, 3.7 Hz, 1H), 2.92 (ddd, J = 13.1, 8.7, 5.2 Hz, 2H), 2.40 (t, J = 9.9 Hz, 2H), 2.34- 2.00 (m, 9H), 1.73 (dt, J = 29.2, 9.9 Hz, 3H), 1.34-1.21 (m, 8H); 675.67 [M + H]⁺ 1.20 78

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.99 (s, 1H), 8.61 (s, 1H), 8.14 (s, 2H), 7.28 (t, J = 7.4 Hz, 1H), 7.19 (t, J = 7.4 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.83 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.23 (ddd, J = 16.7, 14.9, 1.9 Hz, 2H), 6.08 (dd, J = 17.3, 10.3 Hz, 1H), 5.88 (dd, J = 10.3, 1.9 Hz, 1H), 5.73 (dq, J = 8.6, 4.6 Hz, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.80 (s, 3H), 3.59 (h, J = 6.6 Hz, 4H), 3.15-3.05 (m, 8H), 2.78 (dtd, J = 11.8, 7.9, 3.9 Hz, 2H), 2.26 (d, J = 1.9 Hz, 3H), 2.19- 2.09 (m, 2H), 2.04 (s, 4H), 1.77 (s, 2H), 1.68 (q, J = 9.5 Hz, 2H),; 671.6 [M + H]⁺ 1.22 79

N-(5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 8.07 (s, 1H), 7.04-6.91 (m, 2H), 6.81 (s, 1H), 6.77-6.68 (m, 1H), 6.45 (dd, J = 10.3, 16.9 Hz, 1H), 6.35 (d, J = 3.8 Hz, 1H), 6.25 (dd, J = 1.6, 17.0 Hz, 1H), 5.70 (dd, J = 1.6, 10.2 Hz, 1H), 5.46 (dd, J = 4.8, 8.7 Hz, 1H), 4.04 (td, J = 4.0, 7.8 Hz, 1H), 3.86 (q, J = 8.0 Hz, 1H), 3.77 (s, 3H), 3.51-3.44 (m, 1H), 3.11-3.01 (m, 3H), 2.89-2.62 (m, 8H), 2.60- 2.50 (m, 1H), 2.43 (s, 3H), 2.29-2.16 (m, 2H), 2.06-1.96 (m, 2H), 1.77-1.64 (m, 2H), 0.83-0.75 (m, 2H); 677.3 [M + H]⁺ 1.26 80

N-(5-((6-((R)-3- (3-fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.28 (s, 1H), 9.08 (s, 1H), 8.24 (s, 1H), 8.04 (s, 1H), 7.41 (q, J = 7.5Hz, 1H), 7.21 (dd, J = 17.1,9.1 Hz, 2H), 7.11 (td, J = 8.6, 2.7 Hz, 1H), 6.86 (s, 1H), 6.62 (dd, J = 16.9, 10.3 Hz, 1H), 6.33- 6.15 (m, 2H), 5.75 (d, J = 10.3 Hz, 1H), 5.54 (dd, J = 8.6, 5.3 Hz, 1H), 4.61 (t, J = 6.7 Hz, 2H), 4.47 (t, J = 6.1 Hz, 2H), 4.22 (td, J = 7.7, 4.0 Hz, 2H), 3.94 (q, J = 7.8 Hz, 3H), 3.81 (s, 3H), 3.38-3.30 (m, 4H), 3.21-3,13 (m, 2H), 2.85 (dtd, J = 12.0, 7.8, 4.1 Hz, 2H), 2.76 (t, J = 11.7 Hz, 3H), 2.28 (ddd, J = 12.8, 10.5, 6.6 Hz, 2H), 2.13 (d, J = 11.9 Hz, 2H), 1.94 (tt, J = 14.2, 7.0 Hz, 2H); 659.56 [M + H]⁺ 1.16 81

N-(4-methoxy- 5-((6-((R)-3-(3- methoxyphenyl) isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-(oxetane-3- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.12 (s, 1H), 9.16 (d, J = 5.5 Hz, 1H), 8.33 (s, 1H), 7.85 (s, 1H), 7.33-7.25 (m, 1H), 6.91-6.86 (m, 4H), 6.76-6.67 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 2H), 5.49-5.42 (m, 2H), 4.77 (d, J = 6.4 Hz, 2H), 4.62 (t, J = 3.8 Hz, 1H), 4.34 (td, J = 7.5, 4.4 Hz, 1H), 4.10 (q,J = 7.7 Hz, 1H), 3.79 (s, 3H), 3.75 (s, 3H), 3.34 (s, 2H), 3.24 (d, J = 11.3 Hz, 2H), 2.95 (dp, J = 12.3, 4.6, 3.6 Hz, 1H), 2.84 (t, J = 11.6 Hz, 2H), 2.39-2.25 (m, 2H), 2.16 (d, J = 12.3 Hz, 2H), 2.08 (s, 8H), 1.29-1.22 (m, 2H); 671.65 [M + H]⁺ 1.11 82

N-(5-((6-((R)-3- (4- chlorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide 676.23 [M + H]+ 1.21 83

N-(5-((6-((R)-3- (4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.10 (s, 1H), 9.15 (d, J = 4.7 Hz, 1H), 8.33 (s, 1H), 7.87 (s, 1H), 7.60 (t, J = 8.1 Hz, 1H), 7.41 (dd, J = 10.3, 2.0 Hz, 1H), 7.24 (dd, J = 8.4, 1.9 Hz, 1H), 6.91 (s, 1H), 6.70 (ddd, J = 15.7, 10.4, 4.2 Hz, 1H), 6.31-6.17 (m, 1H), 6.05 (d, J = 31.5 Hz, 1H), 5.77 (d, J = 10.4 Hz, 1H), 5.53 (dd, J = 8.5, 5.5 Hz, 1H), 4.74 (t, J = 6.0 Hz, 2H), 4.32 (dd, J = 7.6, 4.4 Hz, 2H), 3.80 (s, 3H), 3.32 (d, J = 3.2 Hz, 2H), 3.23 (d, J = 11.4 Hz, 4H), 3.05-2.89 (m, 2H), 2.89-2.63 (m, 2H), 2.44 (s, 8H), 2.40- 2.23 (m, 2H), 2.22-1.94 (m, 2H); 693.5 [M + H]⁺ 1.25 84

N-(5-((6-((R)-3- (3,4-dichloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.95 (s, 1H), 9.12 (d, J = 4.7 Hz, 1H), 8.32 (s, 1H), 7.91 (s, 1H), 7.54 (dd, J = 8.6, 1.6 Hz, 1H), 7.38 (t, J = 8.1 Hz, 1H), 6.90 (s, 1H), 6.66 (d, J = 13.4 Hz, 1H), 6.25 (d, J = 16.5 Hz, 1H), 6.11 (s, 1H), 5.77 (s, 1H), 5.68 (t, J = 7.2 Hz, 1H), 4.67 (d, J = 27.0 Hz, 5H), 4.34 (d, J = 4.2 Hz, 1H), 4.07 (d, J = 7.8 Hz, 2H), 3.81 (s, 3H), 3.71 (d, J = 16.1 Hz, 3H), 3.41 (dd, J = 22.8, 7.0 Hz, 5H), 3.01-2.95 (m, 1H), 2.79 (d, J = 8.6 Hz, 3H), 2.14 (s, 2H); 727.26 [M + H]⁺ 1.42 85

N-(5-((6-((R)-3- (4-fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.78 (s, 1H), 9.10 (s, 1H), 8.30 (s, 1H), 7.92 (s, 1H), 7.44- 7.36 (m, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.88 (s, 1H), 6.67 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.03 (s, 1H), 5.80-5.73 (m, 1H), 5.51 (s, 1H), 4.64 (d, J = 6.8 Hz, 2H), 4.55 (s, 2H), 4.30 (s, 1H), 4.05 (d, J = 7.7 Hz, 1H), 3.80 (s, 3H), 3.63 (s, 2H), 3.38 (d, J = 6.9 Hz, 3H), 3.20 (d, J = 11.6 Hz, 6H), 2.91 (dd, J = 8.5, 4.6 Hz, 1H), 2.77 (d, J = 11.9 Hz, 2H), 2.33- 2.27 (m, 1H), 2.14 (d, J = 11.2 Hz, 2H), 2.01 (s, 2H), 1.10 (d, J = 7.0 Hz, 1H); 659.34 [M + H]⁺ 1.15 86

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.89 (s, 1H), 8.19 (s, 1H), 8.11 (s, 1H), 7.52 (t, J = 7.5 Hz, 1H), 7.43 (t, J = 7.3 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.85 (s, 1H), 6.60 (dd, J = 17.0, 10.1 Hz, 1H), 6.34 (s, 1H), 6.29-6.18 (m, 1H), 5.73 (td, J = 9.2, 8.4, 3.8 Hz, 2H), 4.60 (t, J = 6.6 Hz, 2H), 4.46 (t, J = 6.1 Hz, 2H), 4.20 (dd, J = 8.0, 3.7 Hz, 1H), 3.89 (t, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.16 (d, J = 12.0 Hz, 8H), 2.97 (s, 2H), 2.85 (dtd, J = 11.8, 7.7, 3.5 Hz, 2H), 2.75 (t, J = 11.8 Hz, 2H), 2.31-2.16 (m, 2H), 2.12 (d, J = 11.5 Hz, 2H), 1.98-1.81 (m, 2H); 693.5 [M + H]⁺ 1.30 87

N-(2-(4-(4- allylpiperazine-1- yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.74 (s, 1H), 9.17 (s, 1H), 8.29 (s, 1H), 7.97 (s, 1H), 7.21-7.05 (m, 4H), 6.89 (s, 1H), 6.68 (dd, J = 17.0, 10.2 Hz, 1H), 6.31-6.12 (m, 3H), 6.07-5.91 (m, 2H), 5.76 (dd, J = 10.1,2.0 Hz, 1H), 5.63 (d, J = 17.0 Hz, 2H), 3.81 (s, 13H), 3.57 (s, 8H), 3.21 (d, J = 11.6 Hz, 3H), 2.96-2.86 (m, 2H), 2.81 (q, J = 14.1, 11.5 Hz, 3H), 2.32 (dq, J = 12.8, 7.6 Hz, 2H), 2.23- 1.96 (m, 6H); 661.59 [M + H]⁺ 1.61 88

N-(2-(4-(4- allylpiperazine-1- yl)piperidine-1- yl)-5-((6-((R)-3- (2,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.90 (s, 1H), 9.19 (S, 1H), 8.30 (s, 1H), 7.95 (s, 1H), 7.32 (td, J = 9.3, 4.4 Hz, 1H), 7.26-7.11 (m, 2H), 6.90 (s, 1H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.31-6.10(m, 2H), 5.99 (ddt, J = 17.1, 10.2, 7.0 Hz, 1H), 5.80-5.71 (m, 2H), 5.70-5.52 (m, 3H), 3.81 (s, 4H), 3.74- 3.49 (m, 8H), 3.22 (d, J = 11.4 Hz, 2H), 2.92 (ddd, J = 11.9, 7.7, 4.4 Hz, 1H), 2.80 (t, J = 11.7 Hz, 2H), 2.36-2.22 (m, 1H), 2.22- 2.00 (m,4H);661.54 [M + H]⁺ 1.16 89

N-(2-(4-(4- allylpiperazine-1- yl)piperidine-1- yl)-5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.53 (s, 1H), 10.39 (s, 1H), 9.31 (s, 1H), 8.35 (s, 1H), 7.88 (s, 1H), 7.58 (dd, J = 7.1,2.0 Hz, 1H), 7.40 (ddd, J = 11.7, 8.6, 6.2 Hz, 2H), 6.93 (s, 1H), 6.73(td, J = 16.1, 10.3 Hz, 1H), 6.31- 6.18 (m, 1H), 6.10 (dd,J = 17.1, 10.2 Hz, 1H), 6.06-5.95 (m, 1H), 5.76 (dd, J = 7.1, 4.5 Hz, 1H), 5.64 (d, J = 16.8 Hz, 1H), 5.59- 5.48 (m, 2H), 4.36-4.30 (m, 3H), 3.82 (s, 3H), 3.73-3.69 (m, 3H), 3.29-3.16 (m, 3H), 2.84 (s, 2H), 2.71 (d, J = 4.9 Hz, 3H), 2.33 (dd, J = 12.9, 5.1 Hz, 1H), 2.13 (dd, J = 23.6, 14.7 Hz, 3H); 677.56 [M + H]⁺ 1.27 90

N-(2-(4-(4- allylpiperazine-1- yl)piperidine-1- yl)-5-((6-(R-3-(3- chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (s, 1H), 8.88 (s, 1H), 8.19 (s, 1H), 8.11 (s, 1H), 7.52 (t, J = 7.5 Hz, 1H), 7.43 (t, J = 7.3 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.84 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.34(s, 1H), 6.23 (d, J = 16.9 Hz, 1H), 5.86 (dt, J = 16.6, 8.0 Hz, 1H), 5.78-5.67 (m, 2H), 5.46 (s, 1H), 5.41 (d, J = 8.5 Hz, 1H), 4.20 (td, J = 8.0, 3.5 Hz, 2H), 3.89 (q, J = 6.9, 5.5 Hz, 2H), 3.81 (s, 3H), 3.17 (s, 4H), 3.13 (s, 2H), 2.90-2.79 (m, 2H), 2.73 (t, J = 11.7 Hz, 2H), 2.27-2.14 (m, 1H), 2.08-1.99 (m, 2H), 1.91 (s, 4H), 1.85 (s, 2H); 677.51 [M + H]⁺ 1.25 91

N-(2-(4-(4- (cyclopropylmethyl)piperazine- 1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3- phenylisoxazol idine-2- yl)pyrimidine- 4-yl)amino)phenyl)acrylamide +¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.46 (s, 1H), 8.37 (s, 1H), 7.46 (d, J = 7.2 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.24 (dd, J = 8.4, 6.5 Hz, 1H), 6.91 (s, 1H), 6.75 (s, 1H), 6.69 (s, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (ddd, J = 14.4, 9.3, 3.0 Hz, 2H), 4.15 (td, J = 8.0, 4.5 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.06 (d, J = 11.2 Hz, 2H), 2.79-2.68 (m, 6H), 2.38 (dtt, J = 16.3, 8.2, 4.2 Hz, 2H), 2.29 (d, J = 6.6 Hz, 2H), 2.09 (d, J = 12.5 Hz, 2H), 1.89-1.75 (m, 3H), 1.68 (td, J = 12.0, 3.7 Hz, 3H), 0.93-0.83 (m, 2H), 0.57-0.49 (m, 2H), 0.12 (dt, J = 5.9, 4.5 Hz, 2H); 639.67 [M + H]⁺ 1.33 min 92

N-(2-(4-(4- (cyclopropyl- methyl)piperazine- 1-yl)piperidine-1- yl)-5-((6-((R)- 3-(3,5- difluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.19 (s, 1H), 7.11-7.00 (m, 2H), 6.92 (s, 1H), 6.84 (tt, J = 2.4, 9.0 Hz, 1H), 6.56 (dd, J = 10.3, 17.0 Hz, 1H), 6.48 (s, 1H), 6.36 (dd, J = 1.6, 17.0 Hz, 1H), 5.81 (dd, J = 1.6, 10.2 Hz, 1H), 5.58 (dd, J = 4.7, 8.7 Hz, 1H), 4.20-4.11 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.20- 3.11 (m, 2H), 3.03-2.69 (m, 11H), 2.61- 2.56 (m, 2H), 2.56-2.47 (m, 1H), 2.41-2.26 (m, 1H), 2.10-2.02 (m, 2H), 1.87-1.71 (m, 2H), 1.06-0.94 (m, 1H), 0.69-0.61 (m, 2H), 0.28 (dt, J = 4.6, 6.1 Hz, 2H); 675.3 [M + H]⁺ 1.23 93

N-(2-(4-(4- (cyclopropyl- methyl)piperazine- 1-yl)piperidine-1- yl)-5-((6-((R)- 3-(2,5- difluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.18 (d, J = 1.0 Hz, 1H), 7.26 (ddd, J = 3.3, 5.8, 9.1 Hz, 1H), 7.15 (td, J = 4.4, 9.3 Hz, 1H), 7.08- 6.99 (m, 1H), 6.93 (s, 1H), 6.62-6.46 (m, 2H), 6.36 (dd, J = 1.6, 17.0 Hz, 1H), 5.79 (td, J = 3.1,9.3, 9.8 Hz, 2H), 4.19-4.10 (m, 1H), 4.00 (q, J = 8.0 Hz, 1H), 3.20-3.13 (m, 2H), 3.02-2.74 (m, 11H), 2.61-2.55 (m, 2H), 2.55- 2.48 (m, 1H), 2.32-2.23 (m, 1H), 2.11-2.03 (m, 2H), 1.86-1.72 (m, 2H), 1.04-0.95 (m, 1H), 0.69-0.61 (m, 2H), 0.31-0.23 (m, 2H); 675.4 [M + H]⁺ 1.17 94

N-(5-((6-((R)- 3-(3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4- (cyclopropyl- methyl)piperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.20 (s, 1H), 10.35 (s, 1H), 9.30 (s, 1H), 8.35 (s, 1H), 7.88 (s, 1H), 7.58 (dd, J = 7.0, 2.0 Hz, 1H), 7.46- 7.35 (m, 3H), 6.93 (s, 1H), 6.74 (dt, J = 16.7, 8.4 Hz, 1H), 6.26 (dd, J = 17.0, 1.6 Hz, 1H), 6.12 (s, 1H), 5.77 (d, J = 11.7 Hz, 1H), 5.55 (dd, J = 8.0, 5.5 Hz, 1H), 4.32 (dd, J = 7.2, 4.4 Hz, 2H), 4.07 (dd, J = 15.4, 7.8 Hz, 3H), 3.82 (s, 3H), 3.50 (d, J = 11.3 Hz, 4H), 3.25 (d, J = 10.2 Hz, 4H), 3.11 (d, J = 7.5 Hz, 3H), 2.99- 2.82 (m, 6H), 2.71 (d, J = 4.9 Hz, 1H), 2.32 (dt, J = 12.7, 6.4 Hz, 1H), 2.17 (d, J = 19.0 Hz, 4H), 2.09 (s, 1H), 2.05 (s, 1H), 1.28 (ddd, J = 16.7, 13.1,8.3 Hz, 3H), 1.12 (ddd, J = 21.3, 10.8,5.9 Hz, 3H), 0.69-0.59 (m, 4H), 0.46 (q, J = 4.8 Hz, 3H), 0.43-0.37 (m, 1H); 691.59 [M + H]⁺ 1.26 95

N-(2-(4-(4- (cyclopropylmeth- yl)piperazine- 1-yl)piperidine- 1-yl)-5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.34 (s, 1H), 9.28 (s, 1H), 8.30 (s, 1H), 7.84 (s, 1H), 7.48-7.39 (m, 1H), 7.13 (t, J = 8.5 Hz, 2H), 6.93 (s, 1H), 6.80-6.71 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.95 (s, 1H), 5.76 (dd, J = 10.1, 1.9 Hz, 1H), 5.70 (s, 1H), 4.53-4.48 (m, 1H), 4.10-4.03 (m, 1H), 3.79 (s, 3H), 3.66 (s, 2H), 3.43 (t, J = 5.4 Hz, 7H), 3.14- 3.07 (m, 2H), 2.94 (dd, J = 6.0, 3.0 Hz, 1H), 2.85 (t, J = 11.6 Hz, 2H), 2.46, (d, J = 4.2 Hz, 1H), 2.17 (d, J = 19.8 Hz, 4H), 1.09 (t, J = 7.0 Hz, 3H), 0.68-0.60 (m, 2H), 0.50-0.41 (m, 2H); 643.34 [M + H]* 1.18 96

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-(cyclopropylmeth- yl)piperazine- 1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d) δ 8.96 (s, 1H), 8.63 (s, 1H), 8.14 (d, J = 8.3 Hz, 2H), 7.55- 7.47 (m, 1H), 7.47-7.41 (m, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 16.9, 2.0 Hz, 1H), 5.77-5.67 (m, 2H), 4.07 (s, 4H), 3.90-3.81 (m, 2H), 3.80 (s, 3H), 3.05 (d, J = 11.1 Hz, 2H), 2.81 (dd, J = 8.4, 4.0 Hz, 2H), 2.71-2.62 (m, 2H), 2.15 (d, J = 6.5 Hz, 2H), 1.91 (s, 4H), 1.85 (d, J = 12.0 Hz, 2H), 1.69 (d, J = 11.5 Hz, 2H), 1.18 (t, J = 7.1 Hz, 1H), 0.82 (dd, J = 12.6, 5.5 Hz, 1H), 0.45 (dt, J = 8.5, 2.9 Hz, 2H), 0.06 (q, J = 4.8 Hz, 2H); 691.59 [M + H]⁺ 1.28 97

N-(2-(4-(4- cyclopentylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3- phenylisoxazol- idine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.47 (s, 1H), 8.35 (s, 1H), 7.46 (d, J = 7.2 Hz, 2H), 7.35 (d, J = 3.5 Hz, 2H), 7.25 (q, J = 6.9 Hz, 1H), 6.96 (s, 1H), 6.76 (s, 1H), 6.67 (s, 1H), 6.40-6.32 (m, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.79-5.64 (m, 2H), 4.15 (td, J = 7.7, 4.3 Hz, 1H), 4.06 (q, J = 7.6 Hz, 1H), 3.84 (s, 3H), 3.06 (d, J = 11.0 Hz, 2H), 2.80-2.70 (m, 4H), 2.59 (dq, J = 3.9, 2.5, 1.9 Hz, 2H), 2.50 (s, 2H), 2.33 (s, 6H), 2.09 (d, J = 12.2 Hz, 2H), 1.89 (s, 2H), 1.76-1.64 (m, 4H), 1.57 (t, J = 6.2 Hz, 2H), 1.42 (d, J = 9.7 Hz, 2H); 653.61 [M + H]⁺ 1.29 min 98

N-(2-(4-(4- cyclopentylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.20 (s, 1H), 8.06 (s, 1H), 7.00-6.89 (m, 2H), 6.80 (s, 1H), 6.72 (tt, J = 2.4, 9.1 Hz, 1H), 6.44 (dd, J = 10.3, 17.0 Hz, 1H), 6.35 (s, 1H), 6.24 (dd, J = 1.5, 16.9 Hz, 1H), 5.68 (dd, J = 1.6, 10.3 Hz, 1H), 5.46 (dd, J = 4.7, 8.7 Hz, 1H), 4.08-3.97 (m, 1H), 3.85 (q, J = 7.9 Hz, 1H), 3.76 (s, 3H), 3.09-2.98 (m, 3H), 2.86-2.58 (m, 12H), 2.44-2.32 (m, 1H), 2.22 (dtd, J = 4.6, 8.1, 12.6 Hz, 1H), 1.98-1.86 (m, 5H), 1.73-1.60 (m, 5H), 1.58-1.48 (m, 2H), 1.45- 1.36 (m, 2H); 689.3 [M + H]⁺ 1.23 99

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopentylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 12.42 (s, 1H), 10.33 (s, 1H), 9.30 (s, 1H), 8.34 (s, 1H), 7.89 (s, 1H), 7.58 (dd, J = 7.0, 2.0 Hz, 13H), 7.47-7.35 (m, 2H), 6.93 (s, 1H), 6.74 (dt, J = 16.7, 8.3 Hz, 1H), 6.26 (dd, J = 17.0, 1.6 Hz, 1H), 6.11 (s, 1H), 5.77 (d, J = 11.6 Hz, 1H), 5.58-5.51 (m, 1H), 4.37-4.28 (m, 2H), 4.07 (dd, J = 15.5, 7.8 Hz, 4H), 3.81 (s, 3H), 3.44 (d, J = 7.6 Hz, 2H), 3.25 (d, J = 10.6 Hz, 2H), 3.00-2.88 (m, 2H), 2.83 (t, J = 10.6 Hz, 3H), 2.72 (d, J = 4.9 Hz, 1H), 2.33 (td, J = 12.7, 7.6 Hz, 2H), 2.16 (d, J = 15.4 Hz, 3H), 2.05 (s, 4H), 1.88-1.67 (m, 6H), 1.63-1.48 (m, 5H), 1.28 (ddd, J = 16.5, 13.1, 8.4 Hz, 2H); 705.58 [M + H]⁺. 1.28 100

N-(2-(4-(4- cyclopentylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-A) δ 8.33 (s, 1H), 8.18 (d, J = 0.9 Hz, 1H), 7.26 (ddd, J = 3.2, 5.8, 9.1 Hz, 1H), 7.15 (td, J = 4.3, 9.3 Hz, 1H), 7.08- 6.98 (m, 1H), 6.92 (s, 1H), 6.61-6.49 (m, 2H), 6.36 (dd, J = 1.6, 17.0 Hz, 1H), 5.79 (td, J = 3.1, 9.2, 9.7 Hz, 2H), 4.19-4.10 (m, 1H), 3.99 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.20- 3.12 (m, 2H), 3.06-2.76 (m, 12H), 2.59-2.50 (m, 1H), 2.27 (dtd, J = 4.6, 8.1, 12.7 Hz, 1H), 2.11-2.00 (m, 5H), 1.87-1.73 (m, 5H), 1.72- 1.63 (m, 2H), 1.62-1.51 (m, 2H); 689.4 [M + H]⁺ 1.22 101

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopentylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.96 (s, 1H), 8.63 (s, 1H), 8.14 (d, J = 7.9 Hz, 2H), 7.51 (t, J = 7.5 Hz, 1H), 7.45 (t, J = 7.1 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.64 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (d, J = 17.9 Hz, 1H), 5.73 (dd, J = 9.1, 5.0 Hz, 2H), 4.17 (td, J = 7.9, 3.6 Hz, 2H), 3.85 (q, J = 8.0 Hz, 2H), 3.79 (s, 3H), 3.17 (s, 2H), 3.04 (d, J = 11.0 Hz, 2H), 2.81 (dtd, J = 12.1, 8.1, 3.6 Hz, 2H), 2.72-2.61 (m, 2H), 2.41 (q, J = 8.1 Hz, 2H), 2.21 (tdd, J = 12.7, 9.5, 5.8 Hz, 2H), 1.88 (s, 4H), 1.76 (td, J = 11.0, 5.9 Hz, 2H), 1.68 (d, J = 11.1 Hz, 2H), 1.66-1.54 (m, 2H), 1.50 (ddt, J = 12.4, 9.3, 3.7 Hz, 2H), 1.37-1.20 (m, 2H); 705.62 [M + H]⁺ 1.28 102

N-(4-methoxy- 5-((6-((R)-3- phenylisoxazol- idine-2-yl)pyrimidine-4- yl)amino)-2-(4- (4-(tetrahydro- 2H-pyran-4- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.36 (s, 1H), 7.46 (d, J = 7.3 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.24 (t, J = 7.3 Hz, 1H), 6.91 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.36 (d, J = 16.2 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.76-5.71 (m, 1H), 5.71-5.66 (m, 1H), 4.15 (td, J = 7.9, 4.4 Hz, 1H), 4.10-4.05 (m, 1H), 4.05-3.99 (m, 2H), 3.84 (s, 3H), 3.39 (td, J = 11.9, 1.9 Hz, 2H), 3.06 (d, J = 11.2 Hz, 2H), 2.73 (dt, J = 22.3, 7.0 Hz, 11H), 2.49-2.32 (m, 4H), 2.09 (d, J = 12.3 Hz, 2H), 1.85-1.77 (m, 2H), 1.74-1.54 (m, 4H); 669.75 [M + H]⁺ 1.87 103

N-(2-(4-(2- oxa-6-azaspiro[3.3] heptane-6- yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO) δ 9.00 (s, 1H), 8.64 (s, 1H), 8.17 (s, 1H), 8.12 (s, 1H), 7.17- 7.06 (m, 3H), 6.84 (s, 1H), 6.63-6.52 (m, 1H), 6.36(s, 1H), 6.20 (d, J = 17.4 Hz, 1H), 5.72 (d, J = 10.5 Hz, 1H), 5.56 (dd, J = 8.6, 5.0 Hz, 1H), 4.83-4.68 (m, 1H), 4.62 (s, 3H), 4.43-4.20 (m, 2H), 4.13 (td, J = 7.8, 4.0 Hz, 1H), 3.88-3.75 (m, 4H), 3.67-3.54 (m, 1H), 3.22-2.92 (m, 5H), 2.80-2.58 (m, 4H), 2.30-2.19 (m, 1H), 2.09-1.85 (m, 2H); 634.54 [M + H]⁺. 1.39 104

N-(5-((6-((R)- 3-(3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (5-ethylhexahydro- pyrrolo[3,4- c]pyrrole- 2(1H)-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO) δ 8.98 (s, 1H), 8.64 (s, 1H), 8.16(S, 1H), 8.11 (s, 1H), 7.16- 7.08 (m, 3H), 6.82 (s, 1H), 6.62 (dd, J = 16.9, 10.3 Hz, 1H), 6.35 (s, 1H), 6.24-6.17 (m, 1H), 5.87 (dd, J = 10.3, 1.8 Hz, 1H), 5.72 (d, J = 11.0 Hz, 1H), 5.56 (dd, J = 8.6, 5.0 Hz, 1H), 4.13 (td, J = 7.8, 3.9 Hz, 1H), 3.97- 3.76 (m, 5H), 3.62-3.47 (m, 2H), 3.12- 2.98 (m, 5H), 2.90-2.62 (m, 9H), 2.29- 2.16 (m, 2H), 1.98-1.88 (m, 2H), 1.78- 1.66 (m, 2H), 1.14 (t, J = 10.7 Hz, 3H); 675.62 [M + H]⁺ 1.28 105

N-(5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((3aR,6aS)-tetrahydro-1H- puro[3,4-c]pyrrole- 5(3H)-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO) δ 9.12-8.91 (m, 1H), 8.65 (s, 1H), 8.17 (s, 1H), 8.12 (s, 1H), 7.17-7.07 (m, 3H), 6.84 (s, 1H), 6.56 (s, 1H), 6.38 (s, 1H), 6.22 (d, J = 17.0 Hz, 1H), 5.77-5.67 (m, 1H), 5.56 (dd, J = 8.6, 5.0 Hz, 1H), 4.13 (td, J = 7.8, 3.9 Hz, 1H), 3.94-3.69 (m, 7H), 3.66-3.44 (m, 3H), 3.19-2.97 (m, 5H), 2.81-2.64 (m, 4H), 2.29-2.18 (m, 1H), 2.14-1.82 (m, 4H); 648.57 [M + H]⁺ 1.42 106

N-(2-(4-(4-cyclopropyl- 3,3-dimethylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 689.7 [M + H]⁺ 1.33 107

N-(2-(4-((2R,5S)-4- cyclopropyl- 2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (s, 1H), 7.12 (ddd, J = 8.2, 6.2, 3.2 Hz, 3H), 6.84 (s, 1H), 6.68 (dd, J = 16.9, 10.1 Hz, 1H), 6.34 (s, 1H), 6.21, (dd, J = 16.9, 2.1 Hz, 1H), 5.72 (d, J = 10.9 Hz, 1H), 5.55 (dt, J = 10.5, 5.1 Hz, 1H), 3.85 (dd, J = 15.5, 7.4 Hz, 2H), 3.79 (s, 3H), 3.17 (s, 2H), 3.05 (q, J = 14.6, 13.2 Hz, 4H), 2.88, (d, J = 11.5 Hz, 2H), 2.80 (d, J = 2.4 Hz, 1H), 2.75 (dt, J = 12.6, 3.8 Hz, 3H), 2.67 (q, J = 1.8 Hz, 1H), 2.55 (d, J = 6.1 Hz, 1H), 2.39-2.32 (m, 2H), 2.30-2.19 (m, 2H), 2.00 (td, J = 10.6, 5.5 Hz, 4H), 1.71 (s, 3H), 1.23 (s, 3H), 1.11 (d, J = 6.2, Hz, 3H), 0.99 (d, J = 6.1 Hz, 2H),; 689.6 [M + H]⁺ 1.32 108

N-(2-(4-((2S,5R)-4- cyclopropyl- 2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide 689.6 [M + H]⁺ 1.29 109

N-(2-(4-((R)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.23 (s, 1H), 8.11 (s, 1H), 7.00 (d, J = 4.3 Hz, 2H), 6.85 (s, 1H), 6.77 (tt, J = 2.5, 9,1 Hz, 1H), 6.50 (dd, J = 10.2, 17.0 Hz, 1H), 6.39 (s, 1H), 6.30 (d, J = 16.4 Hz, 1H), 5.75 (d,J = 10.6 Hz, 1H), 5.50 (dd, J = 4.8, 8.6 Hz, 1H), 4.12-4.05 (m, 1H), 3.91 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.14-3.05 (m, 4H), 2.80-2.70 (m, 3H), 2.68- 2.58 (m, 2H), 2.58-2.50 (m, 2H), 2.33- 2.19 (m, 2H), 2.11-2.00 (m, 2H), 1.83-1.71 (m, 2H), 1.71-1.59 (m, 1H), 1.22 (d, 3H), 0.67 (dt, J = 5.8, 11.5 Hz, 1H), 0.58 (dt, J = 4.8, 10.2 Hz, 1H), 0.49 (q, J = 7.5, 9.1 Hz, 1H), 0.32 (dt, J = 5.4, 10.8 Hz, 1H); 675.4 [M + H]⁺ 1.41 110

N-(2-(4-((S)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.07 (d, J = 4.5 Hz, 2H), 6.92 (s, 1H), 6.84 (tt, J = 2.5, 9.1 Hz, 1H), 6.57 (dd, J = 10.3, 17.0 Hz, 1H), 6.46 (s, 1H), 6.37 (d, J = 16.8 Hz, 1H), 5.82 (d, J = 10.4 Hz, 1H), 5.57 (dd, J = 4.7, 8.7 Hz, 1H), 4.15 (dd, J = 4.2, 7.9 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.22-3.15 (m, 4H), 2.86-2.70 (m, 5H), 2.68-2.58 (m, 2H), 2.42-2.28 (m, 2H), 2.17-2.08 (m, 2H), 1.89-1.79 (m, 2H), 1.78- 1.68 (m, 1H), 1.30 (d, J = 6.5 Hz, 3H), 0.75 (dt, J = 5.8, 11.6 Hz, 1H), 0.65 (dt, J = 4.8, 10.2 Hz, 1H), 0.61-0.51 (m, 1H), 0.39 (dt, J = 5.2, 10.5 Hz, 1H); 675.4 [M + H]⁺ 1.41 111

N-(2-(4-((S)- 4-cyclopropyl- 2-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.14-7.02 (m, 2H), 6.94 (s, 1H), 6.87-6.78 (m, 1H), 6.57 (dd, J = 10.3, 17.0 Hz, 1H), 6.47 (s, 1H), 6.37 (dd, J = 1.5, 17.0 Hz, 1H), 5.82 (d, J = 9.8 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.19-4.12 (m, 2H), 3.98 (q, J = 7.9 Hz, 2H), 3.89 (s, 3H), 3.21 (d, J = 11.5 Hz, 4H), 3.14 (d, J = 8.0 Hz, 1H), 3.08-3.02 (m, 2H), 2.96-2.81 (m, 5H), 2.76-2.57 (m, 2H), 2.53-2.44 (m, 1H), 2.39-2.31 (m, 1H), 1.30 (d, J = 6.4 Hz, 3H), 0.56 (d, J = 6.3 Hz, 2H), 0.47 (s, 2H); 675.4 [M + H]⁺ 1.3 112

N-(2-(4-((R)- 4-cyclopropyl- 2-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.11-7.02 (m, 2H), 6.94 (s, 1H), 6.91-6.78 (m, 1H), 6.57 (dd, J = 10.2, 16.9 Hz, 1H), 6.47 (s, 1H), 6.37 (dd, J = 1.5, 16.8 Hz, 1H), 5.82 (d, J = 10.3 Hz, 1H), 5.57 (dd, J = 4.8, 8.6 Hz, 1H), 4.19-4.12 (m, 2H), 3.98 (q, J = 7.9 Hz, 2H), 3.89 (s, 3H), 3.21 (d, J = 12.7 Hz, 4H), 3.10-3.01 (m, 3H), 2.99-2.79 (m, 5H), 2.65 (d, J = 18.7 Hz, 2H), 2.54-2.42 (m, 1H), 2.36-2.29 (m, 1H), 1.32-1.30 (m, 3H), 0.56 (d, J = 6.4 Hz, 2H), 0.47 (s, 2H); 675.4 [M + H]⁺ 1.31 113

N-(2-(4-((2S,5S)-4- cyclopropyl- 2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluoropheny)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.01 (s, 1H), 9.29 (s, 1H), 8.32 (s, 1H), 7.22-7.06 (m, 4H), 6.94 (d, J = 18.2 Hz, 1H), 6.65 (ddd, J = 52.1, 16.8, 10.2 Hz, 1H), 6.25 (d, J = 17.0 Hz, 1H), 6.15 (s, 1H), 5.81-5.71 (m, 2H), 5.55 (dd, J = 8.6, 5.4 Hz, 2H), 4.04 (q, J = 7.7 Hz, 4H), 3.81 (d, J = 4.2 Hz, 6H), 3.57 (s, 6H), 3.21 (d, J = 33.4 Hz, 5H), 3.03-2.87 (m, 4H), 2.88-2.63 (m, 2H), 2.39-2.23 (m, 3H), 2.11 (d, J = 20.3 Hz, 3H), 1.74 (s, 2H), 1.57 (s, 6H),; 689.6 [M + H]⁺ 1.40 114

N-(2-(4-((2R,5R)-4- cyclopropyl- 2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d) δ 8.94 (s, 1H), 8.62 (s, 1H), 8.16 (d, J = 1.0 Hz, 1H), 7.12 (dq, J = 7.7, 3.0, 1.7 Hz, 4H), 6.83 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.75-5.67 (m, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (d, J = 3.9 Hz, 1H), 3.79 (s, 4H), 3.32 (s, 3H), 3.11-2.93 (m, 4H), 2.77 (ddd, J = 12.1, 8.3, 3.9 Hz, 1H), 2.73- 2.64 (m, 3H), 2.60 (dd, J = 10.9, 4.9 Hz, 3H), 2.44 (dd, J = 11.0, 3.2 Hz, 2H), 2.31-2.18 (m, 3H), 1.88-1.77 (m, 3H), 1.77-1.65 (m, 2H), 1.55 (d, J = 10.4 Hz, 2H), 1.09 (d, J = 6.2 Hz, 4H), 0.95 (d, J = 6.3 Hz, 4H), 0.58-0.49 (m, 1H), 0.42-0.31 (m, 3H), 0.13 (d, J = 9.6 Hz, 1H),; 689.6 [M + H]⁺ 1.41 115

N-(2-(4-((1R,5S)-8- cyclopropyl-3,8- diazabicyclo[3.2.1]octan-3- yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.81 (s, 1H), 8.44 (s, 1H), 8.34 (s, 1H), 7.16 (s, 1H), 7.01 (s, 1H), 6.99 (s, 1H), 6.75 (s, 1H), 6.71- 6.65 (m, 2H), 6.40-6.23 (m, 2H), 5.77- 5.72 (m, 1H), 5.66 (dd, J = 8.7, 4.5 Hz, 1H), 4.18-4.11 (m, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.37 (s, 2H), 3.06-2.99 (m, 2H), 2.82-2.63 (m, 5H), 2.55-2.49 (m, 2H), 2.38-2.28 (m, 2H), 2.01-1.85 (m, 7H), 1.69-1.57 (m, 2H), 0.63-0.56 (m, 2H), 0.50-0.43 (m, 2H); 687.53 [M + H]⁺ 1.21 116

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- ethoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.17 (s, 2H), 7.11-7.02 (m, 2H), 6.91-6.77 (m, 2H), 6.58 (dd, J = 10.3, 16.9 Hz, 1H), 6.36 (d, J = 18.5 Hz, 2H), 5.79 (dd, J = 1.6, 10.2 Hz, 1H), 5.56 (dd, J = 4.9, 8.6 Hz, 1H), 4.23- 4.11 (m,4H), 3.96 (t, J = 8.0 Hz, 1H), 3.02-2.89 (m, 4H), 2.91-2.76 (m, 7H), 2.76-2.68 (m, 2H), 2.41-2.28 (m, 2H), 2.10-2.03 (m, 2H), 1.82-1.70 (m, 2H), 1.59 (td, J = 4.1, 12.0 Hz, 1H), 1.48 (t,J = 7.0 Hz, 3H), 0.54 (dd, J = 4.5, 6.7 Hz, 2H), 0.49-0.40 (m, 2H); 675.4 [M + H]⁺ 1.33 117

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)- (E)-4- (dimethylamino) but-2-enamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.18 (s, 1H), 7.11-7.02 (m, 2H), 6.95- 6.80 (m, 4H), 6.76-6.72 (m, 2H), 6.56- 6.44 (m, 2H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.16 (td, J = 3.9, 7.7 Hz, 2H), 3.97 (d, J = 8.0 Hz, 1H), 3.89 (s, 4H), 3.16 (s, 3H), 3.03 (s, 3H), 2.89-2.78 (m, 10H), 2.41-2.28 (m, 2H), 2.14-2.09 (m, 2H), 1.87-1.76 (m, 4H), 0.59-0.53 (m, 2H), 0.50-0.44 (m,2H); 718.4 [M + H]⁺ 1.1 118

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((S)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.04-6.97 (m, 2H), 6.94 (s, 1H), 6.75 (s, 1H), 6.73-6.64 (m, 2H), 6.39-6.19 (m, 2H), 5.74 (d, J = 11.1 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.19-4.11 (m, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.12-3.00 (m, 2H), 2.81- 2.59 (m, 10H), 2.40-2.29 (m, 2H), 2.14- 2.03 (m, 2H), 1.76-1.60 (m, 4H), 0.51- 0.38 (m, 4H); 661.54 [M + H]⁺ 1.19 119

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- trifluoropropane- 2-yl)oxy)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.25 (s, 1H), 8.17 (s, 1H), 7.11-6.98 (m, 3H), 6.90- 6.77 (m, 1H), 6.63-6.49 (m, 1H), 6.41 (d, J = 6.0 Hz, 2H), 5.83 (d, J = 10.3 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.19-4.13 (m, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.23-3.14 (m, 3H), 3.06-2.91 (m, 4H), 2.91-2.76 (m, 8H), 2.40- 2.29 (m, 1H), 2.17-2.11 (m, 2H), 1.93- 1.75 (m, 4H), 1.44 (d, J = 6.5 Hz, 3H), 0.60- 0.52 (m, 2H), 0.52-0.45 (m, 2H); 743.3 [M + H]⁺ 1.42 120

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)- 2-fluoroacrylamide H NMR (400 MHz, DMSO-d₆) δ 9.30 (d, J = 3.6 Hz, 1H), 8.70 (s, 1H), 8.42 (d, J = 1.2 Hz, 1H), 8.19 (s, 1H), 7.13 (ddd, J = 7.9, 5.4, 2.9 Hz, 3H), 6.95 (s, 1H), 6.44 (s, 1H), 5.79-5.61 (m, 1H), 5.29 (dd, J = 13.9, 3.0 Hz, 1H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.82 (s, 4H), 3.06 (d, J = 11.4 Hz, 2H), 2.88 (d, J = 30.1 Hz, 5H), 2.77 (ddt, J = 15.4, 7.4, 4.0 Hz, 8H), 2.32- 2.18 (m, 1H), 2.11-2.03 (m, 2H), 1.65 (td, J = 11.9, 3.6 Hz, 2H), 1.24 (dd, J = 4.6, 2.5 Hz, 2H), 0.45 (dt, J = 6.2, 2.9 Hz, 2H), 0.36 (q, J = 3.4, 2.9 Hz, 2H),; 679.5 [M + H]⁺ 1.35 121

N-(5-((6-((R)- 3-(3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,5S)-4- cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.31 (s, 1H), 9.38 (s, 1H), 8.35 (s, 1H), 7.88 (d, J = 73.3 Hz, 1H), 7.59 (dd, J = 7.1,2.2 Hz, 1H), 7.46-7.34 (m, 2H), 6.96 (d, J = 22.5 Hz, 1H), 6.68 (ddd, J = 55.9, 17.0, 10.2 Hz, 1H), 6.25 (d, J = 17.0 Hz, 1H), 6.13 (s, 1H), 5.77 (dd, J = 10.1, 1.9 Hz, 1H), 5.54 (t, J = 7.0 Hz, 1H), 4.32 (d, J = 4.6 Hz, 1H), 4.19-4.00 (m, 3H), 3.97 (s, 1H), 3.82 (d, J = 4.1 Hz, 3H), 3.71 (s, 1H), 3.57 (d, J = 2.2 Hz, 2H), 3.44-3.35 (m, 1H), 3.24 (d, J = 30.2 Hz, 3H), 2.96 (ddd, J = 17.0, 8.7, 4.8 Hz, 3H), 2.83-2.67 (m, 1H), 2.33 (dt, J = 9.5, 5.2 Hz, 2H), 2.15 (s, 2H), 1.77 (s, 2H), 1.61 (d, J = 13.5 Hz, 4H), 1.46-1.34 (m, 1H), 0.84 (d, J = 6.8 Hz, 3H),; 705.3 [M + H]⁺ 1.45 122

N-(5-((6-((R)- 3-(3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2R,5R)-4- cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (d, J = 35.7 Hz, 3H), 8.21 (s, 1H), 7.56-7.49 (m, 1H), 7.46-7.39 (m, 2H), 7.23 (t, J = 7.9 Hz, 2H), 6.85 (s, 1H), 6.51 (t, J = 13.9 Hz, 1H), 6.32 (s, 2H), 6.28-6.17 (m, 2H), 5.80-5.67 (m, 4H), 4.21 (dt, J = 7.9, 4.1 Hz, 2H), 3.91 (q, J = 7.9 Hz, 2H), 3.81 (s, 6H), 3.45 (d, J = 9.5 Hz, 1H), 3.16 (d, J = 9.3 Hz, 3H), 2.94 (d, J = 12.1 Hz, 2H), 2.89-2.77 (m, 4H), 2.68 (d, J = 11.1 Hz, 4H), 2.22 (dq, J = 13.1,7.8, 6.6 Hz, 3H), 2.14 (s, 2H), 1.79 (s, 2H), 1.60 (s, 1H), 1.32-1.14 (m, 10H), 0.67 (s, 2H), 0.48 (d, J = 35.5 Hz, 3H),; 705.6 [M + H]⁺ 1.42 123

N-(2-(4- ((2S,5S)-4- cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.59 (s, 1H), 8.14 (s, 1H), 7.28 (t, J = 7.6 Hz, 1H), 7.19 (t, J = 7.3 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.83 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.72 (dd, J = 9.3, 4.4 Hz, 2H), 4.14 (td, J = 7.8, 3.8 Hz, 1H), 3.84 (q, J = 8.0 Hz, 1H), 3.79 (s, 3H), 3.02 (d, J = 11.0 Hz, 2H), 2.95 (s, 1H), 2.77 (dt, J = 8.1, 4.2 Hz, 1H), 2.67 (q, J = 9.5, 8.4 Hz, 2H), 2.64-2.54 (m, 3H), 2.43 (dd, J = 11.0, 3.2 Hz, 2H), 2.26 (d, J = 2.0 Hz, 3H), 2.22-2.09 (m, 2H), 1.82 (t, J = 12.9 Hz, 2H), 1.55 (d, J = 11.1 Hz, 2H), 1.24 (s, 3H), 1.09 (d, J = 6.2 Hz, 3H), 0.94 (d, J = 6.3 Hz, 3H), 0.53 (q, J = 6.0 Hz, 1H), 0.42- 0.31 (m, 2H),; 685.6 [M + H]⁺ 1.40 124

N-(2-(4- ((2R,5R)-4- cyclopropyl-2,5-dimethylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.09 (s, 1H), 8.21 (s, 1H), 8.03 (s, 1H), 7.22 (dt, J = 13.8, 7.4 Hz, 2H), 7.07 (t, J = 7.6 Hz, 1H), 6.86 (s, 1H), 6.51 (t, J = 13.9 Hz, 1H), 6.32-6.17 (m, 2H), 5.74 (dd, J = 10.4 Hz, 1H), 5.70 (dd, J = 8.7, 5.2 Hz, 1H), 4.21 (q, J = 6.0, 4.7 Hz, 1H), 3.92 (q, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.45 (s, 1H), 3.15 (s, 3H), 3.02-2.88 (m, 1H), 2.84 (d, J = 8.3 Hz, 2H), 2.69 (d, J = 13.1 Hz, 3H), 2.54 (s, 1H), 2.26 (d, J = 2.0 Hz, 3H), 2.24- 2.08 (m, 3H), 1.80 (s, 2H), 1.57 (d, J = 19.0 Hz, 1H), 1.38-1.12 (m, 8H), 0.67 (s, 1H), 0.49 (d, J = 35.7 Hz, 2H), 0.21 (s, 1H),; 685.7 [M + H]⁺ 1.41 125

N-(5-((6-((R)- 3-(3- cyanophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.81 (s, 1H), 8.44 (s, 1H), 8.33 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.8 Hz, 1H), 7.54 (d, J = 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.75 (s, 1H), 6.70 (s, 1H), 6.40-6.23 (m, J = 17.0, 12.9 Hz, 2H), 5.77-5.68 (m, 2H), 4.19-4.13 (m, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.11-3.02 (m, 4H), 2.99-2.92 (m, 1H), 2.85-2.68 (m, 3H), 2.65-2.51 (m, 2H), 2.49-2.29 (m, 3H), 2.14-2.08 (m, 3H), 1.79-1.67 (m, 2H), 1.61- 1.53 (m, 1H), 1.23 (d, J = 6.3 Hz, 3H), 0.70- 0.58 (m, 2H), 0.50-0.30 (m, 2H); 664.54 [M + H]⁺ 1.10 126

N-(5-((6-((R)- 3-(3- cyanophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.78 (s, 1H), 8.43 (s, 1H), 8.31 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.9 Hz, 1H), 7.55 (d, J = 7.7 Hz, 1H), 7.48-7.41 (m, 2H), 6.73 (d, J = 13.3 Hz, 1H), 6.68 (s, 1H), 6.40-6.24 (m, 2H), 5.78- 5.67 (m, 2H), 4.20-4.12 (m, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.15-3.00 (m, 5H), 2.84-2.46 (m, 7H), 2.38-2.28 (m, 1H), 2.22- 2.08 (m, 3H), 1.83-1.72 (m, 2H), 1.66- 1.56 (m, 1H), 1.24 (d, J = 6.3 Hz, 3H), 0.72- 0.61 (m, 2H), 0.51-0.33 (m, 2H); 664.59 [M + H]⁺ 1.10 127

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (s, 1H), 7.40-7.25 (m, 2H), 7.24-7.15 (m, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.75 (d, J = 3.9 Hz, 2H), 5.74- 5.69 (m, 1H), 3.85 (q, J = 7.9 Hz, 1H), 3.79 (s, 3H), 3.04 (d, J = 11.1 Hz, 3H), 2.81 (dtd, J = 12.0, 8.0, 3.7 Hz, 1H), 2.70-2.60 (m, 3H), 2.34- 2.15(m, 3H), 1.91 (s, 7H), 1.82 (t, J = 7.2 Hz, 2H), 1.70 (tt, J = 12.8, 6.6 Hz, 3H), 1.57 (dq, J = 6.7, 3.4 Hz, 1H), 1.23 (s, 1H), 0.39 (dt, J = 6.2, 3.0 Hz, 2H), 0.27 (p, J = 3.9 Hz, 2H),; 661.5 [M + H]⁺ 1.23 128

N-(5-((6-((R)- 3-(3-chloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((2S,5S)-4- cyclopropyl-2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.63 (s, 1H), 8.15 (s, 1H), 7.55-7.48 (m, 1H), 7.45 (t, J = 7.1 Hz, 1H), 7.22 (t, J = 8.0 Hz, 1H), 6.83 (s, 1H), 6.66 (dd, J = 17.0, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dt, J = 9.5, 4.2 Hz, 2H), 4.17 (td, J = 7.9, 3.7 Hz, 1H), 3.90-3.82 (m, 1H), 3.79 (s, 3H), 3.02 (d, J = 11.0 Hz, 2H), 2.86-2.75 (m, 1H), 2.69 (d, J = 12.4 Hz, 2H), 2.64-2.53 (m, 2H), 2.26 (t, J = 10.0 Hz, 1H), 2.22-2.15 (m, 1H), 1.87 (s, 6H), 1.80 (d, J = 13.5 Hz, 2H), 1.61- 1.50 (m, 2H), 1.09 (d, J = 6.2 Hz, 3H), 0.94 (d, J = 6.3 Hz, 3H), 0.57-0.49 (m, 1H), 0.37 (d, J = 7.0 Hz, 2H), 0.13 (d, J = 9.8 Hz, 1H),; 705.5[M + H]⁺ 1.43 129

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((S)-3-(2,6- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.87 (s, 1H), 9.17 (s, 1H), 8.26 (s, 1H), 7.90 (s, 1H) 7.42 (ddd, J = 8.5, 6.5, 2.0 Hz, 1H), 7.12 (t, J = 8.5 Hz, 2H), 6.89 (s, 1H), 6.69 (dd, J = 17.0, 10.3 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.99 (s, 1H), 5.76 (dd, J = 10.2, 1.9 Hz, 1H), 5.69 (s, 1H), 4.48-4.41 (m, 1H), 4.01 (d, J = 11.2 Hz, 2H), 3.79 (s, 3H), 3.70 (s, 4H), 3.57 (s, 2H), 3.21 (d, J = 11.4 Hz, 2H), 2.91 (s, 1H), 2.79 (t, J = 11.8 Hz, 2H), 2.46 (s, 1H), 2.16 (s, 2H), 2.09 (s, 3H), 1.24 (s, 2H), 1.10 (s, 2H), 0.80 (d, J = 6.4 Hz, 2H),; 661.3[M + H]⁺ 1.14 130

N-(5-((6-((R)- 3-(4-chloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide 676.3[M + H]⁺ 1.34 131

N-(5-((6-((R)-3- (3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-4- cyclopropyl-2- methylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.79 (s, 1H), 8.42 (s, 1H), 8.31 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.9 Hz, 1H), 7.55 (d, J = 7.7 Hz, 1H), 7.50- 7.42 (m, 2H), 6.76 (s, 1H), 6.68 (s, 1H), 6.40- 6.24 (m, 2H), 5.76 (dd, J = 9.7, 1.6 Hz, 1H), 5.71 (dd, J = 8.7, 4.6 Hz, 1H), 4.19-4.11 (m, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.17-3.04 (m, 3H), 3.02-2.91 (m, 4H), 2.87- 2.77 (m, 2H), 2.76-2.58 (m, 3H), 2.45- 2.28 (m, 2H), 2.00-1.87 (m, 3H), 1.76-1.65 (m, 2H), 1.18 (d, J = 6.3 Hz, 3H), 0.53-0.42 (m, J = 5.7 Hz, 4H); 664.54[M + H]⁺ 1.12 132

N-(5-((6-((R)-3- (3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-4- cyclopropyl-2- methylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.79 (s, 1H), 8.42 (s, 1H), 8.32 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.8 Hz, 1H), 7.55 (d, J = 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 7.38 (s, 1H), 6.76 (s, 1H), 6.69 (s, 1H), 6.39-6.23 (m, 2H), 5.76 (dd, J = 9.8, 1.6 Hz, 1H), 5.71 (dd, J = 8.7, 4.6 Hz, 1H), 4.19-4.13 (m, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.12-3.04 (m, 3H), 3.00-2.89 (m, 4H), 2.86-2.78 (m, 2H), 2.72-2.55 (m, 3H), 2.41-2.29 (m, 2H), 1.98-1.86 (m, 3H), 1.74-1.63 (m, 2H), 1.16 (d, J = 6.2 Hz, 3H), 0.52-0.43 (m, 4H); 664.59 [M + H]⁺ 1.12 133

N-(5-((6-((R)-3- (3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (8-cyclopropyl- 3,8- diazabicyclo[3.2.1]octan-3- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.78 (s, 1H), 8.44 (s, 1H), 8.31 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.9 Hz, 1H), 7.54 (d, J = 7.7 Hz, 1H), 7.47- 7.38 (m, 2H), 6.75 (s, 1H), 6.68 (s, 1H), 6.40- 6.24 (m, 2H), 5.75 (dd, J = 9.7, 1.6 Hz, 1H), 5.71 (dd, J = 8.6, 4.6 Hz, 1H), 4.19-4.11 (m, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.49 (s, 2H), 3.08-2.98 (m, 2H), 2.85-2.65 (m, 7H), 2.44-2.29 (m, 2H), 2.04-1.91 (m, 7H), 1.73-1.60 (m, 2H), 0.81-0.73 (m, 2H), 0.56-0.48 (m, 2H); 676.59 [M + H]⁺ 1.13 134

N-(2-(4-(8- cyclopropyl-3,8- diazabicyclo[3.2.1]octan-3- yl)piperidine-1- yl)-5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.83 (s, 1H), 8.44 (s, 1H), 8.34 (s, 1H), 7.35-7.28 (m, 1H), 7.12 (s, 1H), 7.03-6.95 (m, 1H), 6.93-6.85 (m, 1H), 6.75 (s, 1H), 6.74 (s, 1H), 6.40-6.23 (m, 2H), 5.89 (dd, J = 8.7, 4.4 Hz, 1H), 5.75 (dd, J = 9.8, 1.6 Hz, 1H), 4.14-4.03 (m, 2H), 3.84 (s, 3H), 3.35 (s, 2H), 3.06-2.99 (m, 2H), 2.87- 2.78 (m, 1H), 2.74-2.63 (m, 4H), 2.53- 2.46 (m, 2H), 2.36-2.25 (m, 2H), 1.99-1.83 (m, 7H), 1.68-1.57 (m, 2H), 0.59-0.52 (m, 2H), 0.49-0.41 (m, 2H); 687.53 [M + H]⁺ 1.22 135

N-(2-(4-(8- cyclopropyl- 3,8- diazabicyclo[3.2.1]octan-3- yl)piperidine-1- yl)-5-((6-((R)-3- (2,3-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.80 (s, 1H), 8.43 (s, 1H), 8.32 (s, 1H), 7.37- 7.28 (m, 2H), 7.10-7.00 (m, 2H), 6.75 (s, 1H), 6.71 (s, 1H), 6.40-6.23 (m, 2H), 5.92 (dd, J = 8.5, 4.5 Hz, 1H), 5.75 (dd,J = 9.8, 1.6 Hz, 1H), 4.16-4.02 (m, 2H), 3.84 (s, 3H), 3.42 (s, 2H), 3.08- 2.98 (m, 2H), 2.92-2.53 (m, 7H), 2.40- 2.26 (m, 2H), 2.03-1.87 (m, 7H), 1.71- 1.58 (m, 2H), 0.71-0.62 (m, 2H), 0.53- 0.44 (m, 2H); 687.53 [M + H]⁺ 1.22 136

N-(2-(4-((S)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(2,6- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.42 (s, 1H), 8.35 (s, 1H), 7.82 (s, 1H), 7.24-7.20 (m, 1H), 6.91-6.87 (m, 2H), 6.73 (s, 1H), 6.40-6.31 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.94-5.88 (m, 1H), 5.78-5.64 (m, 2H), 4.45-4.30 (m, 2H), 3.97 (p, J = 7.5 Hz, 2H), 3.00 (d, J = 26.2 Hz, 4H), 2.90 (d, J = 10.8 Hz, 1H), 2.82-2.67 (m, 4H), 2.61-2.53 (m, 2H), 2.48 (d, J = 11.2 Hz, 1H), 2.33 (t, J = 10.8 Hz, 2H), 1.69- 1.64 (m, 2H), 1.56-1.53 (m, 1H), 1.21 (d, J = 6.3 Hz, 3H), 0.67-0.57 (m, 2H), 0.48-0.41 (m, 1H), 0.36-0.29 (m, 1H); 675.6[M + H]⁺ 1.11 137

N-(2-(4-((R)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3-(2,6- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.80 (s, 1H), 8.41 (s, 1H), 8.34 (d, J = 1.0 Hz, 1H), 7.83 (s, 1H), 7.24-7.20 (m, 1H), 6.90-6.88 (m, 2H), 6.72 (s, 1H), 6.39- 6.32 (m, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.91 (dd, J = 9.0, 6.5 Hz, 1H), 5.76- 5.68 (m, 2H), 4.44-4.33 (m, 2H), 3.97 (p, J = 7.2 Hz, 2H), 3.81 (s, 3H), 3.08- 2.98 (m, 4H), 2.92 (d, J = 11.1 Hz, 1H), 2.78-2.67 (m, 4H), 2.61-2.56 (m, 2H), 2.54-2.48 (m, 1H), 2.40-2.33 (m, 2H), 1.73-1.65 (m, 2H), 1.55 (dt, J = 6.7, 3.2 Hz, 1H), 1.22 (d, J = 6.3 Hz, 3H), 0.67- 0.59 (m, 2H), 0.48-0.40 (m, 1H), 0.37- 0.30 (m, 1H); 675.6[M + H]⁺ 1.10 138

N-(5-((6-((R)- 3-(3-chlorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.20 (s, 1H), 9.06 (s, 1H), 8.23 (d, J = 2.1 Hz, 1H), 8.05 (s, 1H), 7.43 (d, J = 3.6 Hz, 1H), 7.39 (d, J = 7.5 Hz, 1H), 7.37-7.33 (m, 2H), 6.85 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.28-6.19 (m, 2H), 5.74 (d, J = 10.3 Hz, 1H), 5.53 (dd, J = 8.6, 5.3 Hz, 1H), 4.26-4.18 (m, 2H), 3.91 (t, J = 7.9 Hz, 3H), 3.80 (s, 3H), 3.29 (d, J = 11.6 Hz, 2H), 3.22-3.09 (m, 4H), 2.85 (d, J = 9.0 Hz, 2H), 2.74 (t, J = 11.7 Hz, 3H), 2.28 (dtd, J = 17.0, 9.1, 7.9, 4.8 Hz, 1H), 2.09 (d, J = 11.9 Hz, 3H), 1.98- 1.84 (m, 2H), 0.63-0.44 (m, 4H),; 659.5 [M + H]⁺ 1.19 139

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,4- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.67 (s, 1H), 9.15 (s, 1H), 8.27 (s, 1H), 7.98 (s, 1H), 7.49-7.38 (m, 1H), 7.35-7.25 (m, 1H), 7.09 (td, J = 8.4, 2.6 Hz, 1H), 6.89 (s, 1H), 6.67 (dd, J = 16.9, 10.2 Hz, 1H), 6.29- 6.12 (m, 2H), 5.76 (d, J = 10.3 Hz, 1H), 5.66 (t, J = 7.3 Hz, 1H), 4.29 (q, J = 7.7, 6.4 Hz, 2H), 4.05-3.98 (m, 4H), 3.81 (s, 3H), 3.76-3.58 (m, 5H), 3.21 (d, J = 11.5 Hz, 2H), 2.94-2.85 (m, 1H), 2.78 (t, J = 11.6 Hz, 2H), 2.30-2.22 (m, 1H), 2.20-2.11 (m, 2H), 2.09-1.93 (m, 2H), 1.26-1.22 (m, 1H), 0.89-0.67 (m, 4H); 661,5[M + H]⁺ 1.19 140

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2- fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.59 (s, 1H), 8.14 (d, J = 1.0 Hz, 2H), 7.28 (t, J = 7.4 Hz, 1H), 7.18 (t, J = 6.9 Hz, 2H), 7.06 (t, J = 7.6 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.70 (s, 1H), 4.14 (td, J = 8.0, 3.9 Hz, 1H), 3.79 (s, 3H), 3.17 (s, 2H), 3.03 (dd, J = 12.0, 6.7 Hz, 3H), 2.95-2.85 (m, 1H), 2.82-2.71 (m, 2H), 2.66 (t, J = 11.6 Hz, 3H), 2.21- 2.06 (m, 2H), 1.88 (s, 8H), 1.83 (d, J = 12.3 Hz, 3H), 1.70 (d, J = 12.1 Hz, 3H), 1.58 (tt, J = 6.6, 3.7 Hz, 1H), 0.39 (dt, J = 6.2, 3.0 Hz, 3H), 0.30-0.26 (m, 2H),; 657.5 [M + H]⁺ 1.26 141

N-(5-((6- ((R)-3-(3- cyanophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.93 (s, 1H), 9.19 (s, 1H), 8.30 (s, 1H), 7.94 (s, 1H), 7.83 (d, J = 1.8 Hz, 1H), 7.78 (d, J = 7.5 Hz, 2H), 7.72 (d, J = 7.9 Hz, 1H), 7.60 (t, J = 7.8 Hz, 1H), 6.90 (s, 1H), 6.69 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.14 (s, 1H), 5.80-5.72 (m, 1H), 5.58 (dd, J = 8.5, 5.5 Hz, 1H), 3.89 (t, J = 6.1 Hz, 1H), 3.81 (S, 3H), 3.57 (s, 2H), 3.43 (d, J = 16.8 Hz, 2H), 3.37 (t, J = 7.0 Hz, 1H), 3.22 (d, J = 11.6 Hz, 2H), 3.07-2.58 (m, 7H), 2.40-2.28 (m, 2H), 2.16 (s, 3H), 2.13-2.00 (m, 3H), 1.15 (d, J = 7.0 Hz, 2H), 0.82 (d, J = 7.0 Hz, 3H),; 650.5[M + H]⁺ 1.15 142

N-(5-((6- ((R)-3-(2- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(8- cyclopropyl- 3,8- diazabicyclo[3.2.1]octan- 3-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.80 (s, 1H), 8.44 (s, 1H), 8.32 (d, J = 0.6 Hz, 1H), 7.46 (d, J = 7.9 Hz, 1H), 7.24-7.18 (m, 1H), 7.07-7.02 (m, 1H), 6.75 (s, 1H), 6.72 (s, 1H), 6.40-6.24 (m, 2H), 5.95 (dd, J = 8.7, 4 4 Hz. 1H), 5.75 (dd, J = 9 8, 1.7 Hz, 1H), 4.14-4.04 (m, 2H), 3.84 (s, 3H), 3.41 (s, 2H), 3.08-2.99 (m, 2H), 2.99-2.88 (m, 1H), 2.76-2.63 (m, 4H), 2.62-2.53 (m, 2H), 2.40-2.32 (m, 1H), 2.28-2.19 (m, 1H), 2.03 -1.86 (m, 7H), 1.70-1.57 (m, 2H), 0.69-0.61 (m, 2H), 0.52-0.45 (m, 2H); 703 50 [M + H]⁺ 1.37 143

N-(5-((6-((R)- 3-(2-chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4- cyclopropyl-2- methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.80 (s, 1H), 8.43 (s, 1H), 8.32 (s, 1H), 7.46 (d, J = 7.9 Hz, 1H), 7.32 (s, 1H), 7.24-7.18 (m, 1H), 7.05 (dd, J = 12.3,4.7 Hz, 1H), 6.74 (d, J = 7.1 Hz, 1H), 6.71 (s, 1H), 6.39-6.23 (m, 2H), 5.94 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (dd, J = 9.8, 1.6 Hz, 1H), 4.13-4.03 (m, 2H), 3.84 (s, 3H), 3.10-3.01 (m, 4H), 2.99-2.89 (m, 2H), 2.79- 2.67 (m, 2H), 2.67-2.51 (m, 2H), 2.50- 2.37 (m, 2H), 2.29-2.19 (m, 1H), 2.14-2.07 (m, 3H), 1.80-1.67 (m, 2H), 1.61-1.54 (m, 1H), 1.23 (d, J = 6.3 Hz, 3H), 0.69-0.59 (m, 2H), 0.50-0.31 (m, 2H); 691.45 [M + H]⁺ 1.34 144

N-(5-((6-((R)- 3-(2-chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4- cyclopropyl-2- methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.78 (s, 1H), 8.42 (s, 1H), 8.31 (s, 1H), 7.48-7.40 (m, 2H), 7.08-7.01 (m, 1H), 6.74 (s, 1H), 6.71 (s, 1H), 6.40-6.24 (m, 2H), 5.94 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (dd, J = 9.7, 1.7 Hz, 1H), 4.15-4.02 (m, 2H), 3.84 (s, 3H), 3.14-2.89 (m, 6H), 2.79-2.43 (m, 6H), 2.27-2.20 (m, 1H), 2.15-2.07 (m, 3H), 1.82-1.70 (m, 2H), 1.64-1.55 (m, 1H), 1.24 (d, J = 6.3 Hz, 3H), 0.71-0.60 (m, 2H), 0.51-0.32 (m, 2H); 691.50 [M + H]⁺ 1.32 145

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4-cyclopropylpip- erazine-1- yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.58 (s, 1H), 8.14 (d, J = 1.0 Hz, 1H), 7.40 (d, J = 7.8 Hz, 2H), 7.34 (dd, J = 8.0, 1.3 Hz, 2H), 7.20 (t, J = 7.9 Hz, 2H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.20 (dd, J = 17.1,2.0 Hz, 1H), 5.69 (dd, J = 8.9, 4.6 Hz, 2H), 4.16-4.13 (m, 1H), 3.79 (s, 3H), 2.89 (t, J = 6.2 Hz, 1H), 2.86-2.78 (m, 2H), 2.65 (d, J = 11.4 Hz, 4H), 2.27 (s, 2H), 2.11-2.07 (m, 1H), 1.89 (s, 8H), 1.83 (d, J = 12.4 Hz, 3H), 1.71 (s, 2H), 1.58 (dt, J = 6.5, 3.1 Hz, 2H), 0.39 (dd, J = 6.4, 2.2 Hz, 2H), 0.28-0.26 (m, 2H),; 673.5 [M + H]⁺ 1.31 146

N-(2-(4-(4- cyclopropylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (naphthalene- 1-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.45 (s, 1H), 8.36(S, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (dd, J = 8.0, 1.5 Hz, 1H), 7.79-7.75 (m, 2H), 7.55-7.45 (m, 3H), 6.91 (s, 1H), 6.78-6.75 (m, 2H), 6.42-6.21 (m, 4H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.20- 4.15 (m, 2H), 3.84 (s, 3H), 3.09-3.03 (m, 2H), 2.99-2.94 (m, 1H), 2.75-2.60 (m, 10H), 2.42-2.32 (m, 2H), 2.10-2.05 (m, 2H), 1.72-1.66 (m, 2H), 0.49-0.42 (m, 4H); 675.5 [M + H]⁺ 1.24 147

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(thiophene-2- yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, CDCl3) δ 8.79 (s, 1H), 8.41 (s, 1H), 8.36 (s, 1H), 7.43 (s, 1H), 7.19 (d, J = 5.1 Hz, 1H), 7.06 (d, J = 3.4 Hz, 1H), 6.95 (dd, J = 4.9, 3.6 Hz, 1H), 6.72 (s, 1H), 6.62 (s, 1H), 6.39-6.11 (m, 2H), 5.99 (dd, J = 8.2, 3.2 Hz, 1H), 5.80 (d, J = 10.4 Hz, 1H), 5.73 (dd, J = 9.8, 1.5 Hz, 1H), 4.23-4.16 (m, 1H), 4.12 (q, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.12-3.01 (m, 2H), 2.98- 2.61 (m, 12H), 2.55-2.46 (m, 1H), 2.16-2.08 (m, 2H), 1.87-1.70 (m, 3H), 0.55-0.46 (m, 4H);631.50 [M + H]⁺ 1.17 148

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(3- (trifluoromethyl- )phenyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.6 Hz, 1H), 7.50-7.44 (m, 2H), 6.95 (s, 1H), 6.74 (d, J = 6.5 Hz, 2H), 6.38- 6.20 (m, 3H), 5.77-5.73 (m, 2H), 4.17-4.07 (m, 2H), 3.84 (s, 3H), 3.07-3.03 (m, 2H), 2.78- 2.61 (m, 12H), 2.36-2.33 (m, 1H), 2.10-2.05 (m, 2H), 1.72-1.65 (m, 2H), 0.47-0.42 (m, 4H); 693.5 [M + H]⁺ 1.42 149

N-(5-((6-((R)- 3-(3-chloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4-cyclopropyl-2- methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.06 (d, J = 26.6 Hz, 2H), 8.21 (d, J = 3.5 Hz, 1H), 7.53 (td, J = 7.6, 1.7 Hz, 1H), 7.42 (t, J = 6.9 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.85 (s, 1H), 6.65 (d, J = 11.5 Hz, 1H), 6.33-6.17 (m, 2H), 5.79-5.65 (m, 2H), 4.22 (dt, J = 7.9, 4.3 Hz, 2H), 3.93 (d, J = 8.0 Hz, 4H), 3.80 (s, 3H), 3.47 (d, J = 31.1 Hz, 4H), 3.22 (s, 2H), 3.15 (d, J = 13.8 Hz, 3H), 2.88 (d, J = 13.8 Hz, 3H), 2.23 (h, J = 7.6 Hz, 1H), 2.14 (s, 1H), 2.00-1.83 (m, 2H), 1.31 (d, J = 6.2 Hz, 3H), 0.61-0.39 (m, 4H),; 691.5[M + H]⁺ 1.41 150

N-(5-((6-((R)- 3-(3-chloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4-cyclopropyl-2- methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.22 (d, J = 24.5 Hz, 1H), 9.05 (s, 1H), 8.23 (d, J = 2.5 Hz, 1H), 7.53 (td, J = 7.6, 1.7 Hz, 1H), 7.45-7.37 (m, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.86 (s, 1H), 6.66 (s, 1H), 6.31-6.20 (m, 2H), 5.73 (td, J = 9.7, 8.8, 3.6 Hz, 2H), 4.30-4.17 (m, 4H), 3.95 (td, J = 9.9, 8.7, 5.9 Hz, 3H), 3.80 (s, 3H), 3.63 (s, 1H), 3.50 (d, J = 24.8 Hz, 2H), 3.27 (s, 2H), 3.14 (t, J = 10.9 Hz, 2H), 2.95-2.72 (m, 4H), 2.33-2.21 (m, 1H), 2.15 (s, 1H), 2.02-1.84 (m, 2H), 1.32 (d, J = 6.2 Hz, 3H), 0.53 (d, J = 25.6 Hz, 4H); 691.5[M + H]⁺ 1.41 151

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(naphthalene- 2-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.05 (s, 2H), 9.85 (s, 1H), 9.16 (s, 1H), 8.28 (s, 1H), 8.00- 7.83 (m, 5H), 7.61-7.44 (m, 3H), 6.86 (s, 1H), 6.68 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.10 (s, 1H), 5.84-5.71 (m, 1H), 5.67 (s, 1H), 4.37 (d, J = 4.7 Hz, 1H), 4.10 (q, J = 7.7 Hz, 3H), 3.77 (s, 3H), 3.70 (s, 4H), 3.20 (d, J = 11.3 Hz, 2H), 3.00 (d, J = 6.4 Hz, 1H), 2.77 (t, J = 11.9 Hz, 2H), 2.41 (dq, J = 12.9, 7.3 Hz, 2H), 2.17 (d, J = 11.0 Hz, 2H), 2.07 (d, J = 16.1 Hz, 2H), 1.32-1.20 (m, 1H), 1.09 (t, J = 7.0 Hz, 2H), 0.80 (s, 2H); 675.53 [M + H]⁺ 1.26 152

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4-cyclopropyl-3- methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.00 (s, 1H), 8.63 (s, 1H), 8.20-8.10 (m, 2H), 7.39 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.1, 1.4 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.61 (dd, J = 16.9, 10.2 Hz, 1H), 6.38 (s, 1H), 6.22 (dd, J = 16.9, 1.9 Hz, 1H), 5.71 (ddd, J = 14.0, 9.4, 3.5 Hz, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.81 (s, 3H), 3.44-3.27 (m, 8H), 3.12 (t, J = 10.9 Hz, 4H), 2.84 (tq, J = 8.0, 3.9 Hz, 2H), 2.72 (s, 4H), 2.42 (s, 4H), 2.08 (ddq, J = 12.8, 8.1,5.2 Hz, 3H), 1.91 (s, 2H), 1.23 (d, J = 14.1 Hz, 4H),; 687.5 [M + H]⁺ 1.32 153

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4-cyclopropyl-3- methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.58 (s, 1H), 8.14 (t, J = 1.6 Hz, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 7.9, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.81 (s, 1H), 6.66 (dd, J = 17.0, 10.2 Hz, 1H), 6.34 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (td, J = 9.0, 8.3, 3.5 Hz, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (s, 3H), 3.32 (s, 6H), 3.04 (d, J = 11.0 Hz, 2H), 2.89-2.60 (m, 7H), 2.42 (s, 3H), 2.36- 2.15 (m,4H), 1.92 (t, J = 9.7 Hz, 1H), 1.83 (d, J = 11.8 Hz, 2H), 1.76-1.63 (m, 3H), 1.10 (d, J = 6.3 Hz, 3H),; 687.5 [M + H]⁺ 1.31 154

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(8-cyclopropyl- 3,8-diazabicyclo [3.2.1]octan-3- yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.58 (s, 1H), 8.14 (d, J = 1.0 Hz, 1H), 7.40 (dd, J = 7.7, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.80 (s, 1H), 6.66 (dd, J = 17.0, 10.2 Hz, 1H), 6.34 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.70 (ddd, J = 8.6, 5.6, 3.4 Hz, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (s, 3H), 3.32 (s, 2H), 3.19 (s, 2H), 3.03 (d, J = 11.1 Hz, 2H), 2.82 (dtd, J = 11.9, 7.9, 3.8 Hz, 1H), 2.63 (ddd, J = 14.5, 10.1,2.8 Hz, 4H), 2.42 (s, 3H), 2.28 (d, J = 9.6 Hz, 2H), 2.18 (dq, J = 10.4, 5.6, 3.4 Hz, 1H), 2.14-2.02 (m, 1H), 1.92-1.75 (m, 5H), 1.66 (dq, J = 20.8, 8.9, 6.4 Hz, 4H), 0.36 (dd, J = 6.4, 4.1 Hz, 2H), 0.30 (d, J = 3.5 Hz, 2H),; 699.5 [M + H]⁺ 1.35 155

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3- (naphthalene- 1-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.45 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.88 (dd, J = 8.1, 1.5 Hz, 1H), 7.79- 7.75 (m, 2H), 7.55-7.45 (m, 3H), 6.92 (s, 1H), 6.78-6.75 (m, 2H), 6.43-6.21 (m, 4H), 5.75- 5.72 (m, 1H), 4.20-4.15 (m, 2H), 3.84 (s, 3H), 3.05-2.85 (m, 7H), 2.75-2.67 (m, 2H), 2.50-2.41 (m, 2H), 2.31-2.28 (m, 1H), 2.08- 1.97 (m, 3H), 1.68-1.64 (m, 2H), 1.56- 1.51 (m, 1H), 1.21 (d, J = 6.3 Hz, 3H), 0.66- 0.59 (m, 2H), 0.46-0.41 (m, 1H), 0.35-0.29 (m, 1H); 689.5 [M + H]⁺ 1.26 156

N-(2-(4-((S)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3- (naphthalene- 1-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.45 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 8.16-8.13 (m, 1H), 7.90-7.86 (m, 1H), 7.77 (dd, J = 7.8, 6.4 Hz, 2H), 7.56-7.44 (m, 3H), 6.92 (s, 1H), 6.76 (d, J = 11.9 Hz, 2H), 6.43-6.20 (m, 4H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.20-4.15 (m, 2H), 3.84 (s, 3H), 3.08-2.86 (m, 7H), 2.76-2.68 (m, 2H), 2.52-2.42 (m, 2H), 2.32-2.28 (m, 1H), 2.02 (dd, J = 22.0, 11.6 Hz, 3H), 1.69- 1.64 (m, 2H), 1.56-1.51 (m, 1H), 1.21 (d, J = 6.4 Hz, 3H), 0.66-0.58 (m, 2H), 0.47- 0.41 (m, 1H), 0.34-0.28 (m, 1H); 689.5 [M + H]⁺ 1.27 157

N-(5-((6-((R)- 3-(3-chloro-5- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 6.99-6.94 (m, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.71 (s, 1H), 6.39-6.11 (m, 2H), 5.77-5.70 (m, 2H), 5.66 (dd, J = 8.7, 4.5 Hz, 1H), 4.19-4.12 (m, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.10-2.85 (m, 5H), 2.81-2.67 (m, 3H), 2.57-2.44 (m, 2H), 2.38-2.25 (m, 3H), 2.11-1.96 (m, 3H), 1.72-1.65 (m, 2H), 1.57-1.50 (m, 1H), 1.21 (d, J = 6.3 Hz, 3H), 0.69-0.55 (m, 2H), 0.48-0.28 (m, 2H); 691.45 [M + H]⁺ 1.34 158

N-(5-((6-((R)- 3-(3-chloro-5- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 6.97 (dt, J = 8.4, 2.0 Hz, 1H) 6.93 (s, 1H), 6.75 (S, 1H), 6.71 (s, 1H), 6.40- 6.19 (m, 2H), 5.74 (dd, J = 10.0, 1.3 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.15 (dt, J = 8.0, 4.1 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.09-2.86 (m, 5H), 2.81- 2.67 (m, 3H), 2.57-2.43 (m, 2H), 2.38- 2.26 (m, 3H), 2.11-1.97 (m, 3H), 1.69- 1.60 (m, 2H), 1.57-1.49 (m, 1H), 1.21 (d, J = 6.3 Hz, 3H), 0.68-0.56 (m, 2H), 0.47- 0.27 (m, 2H);691.50 [M + H]⁺ 1.32 159

N-(5-((6-((R)- 3-(3-chloro-5- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4- cyclopropyl-2- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 6.97 (dt, J = 8.5, 2.0 Hz, 1H), 6.94 (s, 1H), 6.76 (s, 1H), 6.71 (s, 1H), 6.40- 6.22 (m, 2H), 5.75 (dd, J = 10.0, 1.4 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.12-3.01 (m, 2H), 2.99- 2.66 (m, 8H), 2.57-2.41 (m, 2H), 2.38- 2.28 (m, 1H), 2.26-2.19 (m, 1H), 1.93- 1.81 (m, 3H), 1.64-1.55 (m, 2H), 1.09 (d, J = 6.1 Hz, 3H), 0.50-0.37 (m, 4H); 691.45 [M + H]⁺ 1.35 160

N-(5-((6-((R)- 3-(3-chloro-5- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4- cyclopropyl-2- methylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 6.99-6.95 (m, 1H), 6.93 (s, 1H), 6.76 (s, 1H), 6.71 (s, 1H), 6.29 (dt, J = 16.9, 13.3 Hz, 2H), 5.77-5.73 (m, 1H), 5.66 (dd, J = 8.6, 4.6 Hz, 1H), 4.16 (td, J = 8.1,4.3 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.11-3.02 (m, 2H), 2.99-2.63 (m, 8H), 2.57-2.41 (m, 2H), 2.38-2.28 (m, 1H), 2.27-2.10 (m, 1H), 1.94-1.81 (m, 3H), 1.60-1.53 (m, 2H), 1.09 (d, J = 6.2 Hz, 3H), 0.49-0.37 (m, 4H); 691.45 [M + H]⁺ 1.36 161

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (3,4- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (s, 1H), 8.17 (s, 1H), 7.40-7.32 (m, 1H), 7.28- 7.21 (m, 2H), 6.91 (s, 1H), 6.57 (dd, J = 17.0, 10.3 Hz, 1H), 6.45 (s, 1H), 6.36 (dd, J = 17.0, 1.3 Hz, 1H), 5.81 (d, J = 10.4 Hz, 1H), 5.54 (dd, J = 8.5, 4.6 Hz, 1H), 4.15 (td, J = 7.9, 4.3 Hz, 1H), 3.98 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.17 (d, J = 11.0 Hz, 2H), 2.67 (t, J = 11.5 Hz, 1H), 2.40-2.27 (m, 1H), 2.16-2.06 (m, 2H), 1.89-1.74 (m, 3H), 1.30 (s, 1H), 0.59-0.51 (m, 2H), 0.51- 0.43 (m, 2H); 661.5 [M + H]⁺ 1.25 162

N-(2-(4-(4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,3-dichlorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.44(s, 1H), 8.35 (d, J = 1.0 Hz, 1H), 7.59 (dd, J = 7.8, 1.6 Hz, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.96 (s, 1H), 6.75 (s, 2H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.7 Hz, 1H), 4.15-4.02 (m, 2H), 3.85 (s, 3H), 3.65 (p, J = 6.7 Hz, 1H), 3.08 (d, J = 7.4 Hz, 2H), 2.95 (dtd, J = 12.3, 8.0, 4.3 Hz, 1H), 2.81-2.66 (m, 8H), 2.11 (d, J = 12.3 Hz, 2H), 1.83 (s, 6H), 1.55 (t, J = 7.4 Hz, 2H), 0.50-0.40 (m, 4H),; 693.5 [M + H]⁺ 1.35 163

N-(5-((6-((R)-3- (3-chloro-5- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide 677.5 [M + H]⁺ 1.33 164

N-(5-((6-((R)-3- (2-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4- cyclopropylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.43 (s, 1H), 8.35 (s, 1H), 7.46 (d, J = 7.9 Hz, 1H), 7.20 (dt, J = 8.1,4.1 Hz, 1H), 6.74 (d, J = 8.6 Hz, 2H), 6.42-6.16 (m, 2H), 5.95 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.7 Hz, 1H), 4.17-3.98 (m, 2H), 3.84 (s, 3H), 3.81-3.74 (m, 2H), 3.06 (dd, J = 9.4, 5.2 Hz, 2H), 2.81-2.67 (m, 7H), 2.06 (s, 3H), 1.43 (s, 5H), 1.39 (d, J = 6.7 Hz, 3H), 0.95 (t, J = 7.3 Hz, 4H),; 677.5 [M + H]⁺ 1.30 165

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- ethynylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.08 (s, 1H), 9.21 (s, 1H), 8.31 (s, 1H), 7.91 (s, 1H), 7.43 (d, J = 21.5 Hz, 4H), 6.90 (s, 1H), 6.70 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.07 (s, 1H), 5.79-5.74 (m, 1H), 5.56- 5.47 (m, 1H), 4.32 (d, 7 = 4.4 Hz, 1H), 4.24 (s, 1H), 4.10-4.01 (m, 2H), 3.80 (s, 3H), 3.77- 3.71 (m, 4H), 3.22 (d, J = 11.3 Hz, 2H), 2.93 (ddt, J = 11.9, 8.6, 4.8 Hz, 2H), 2.80 (t, J = 11.6 Hz, 2H), 2.35-2.26 (m, 1H), 2.17 (s, 2H), 2.09 (s, 2H), 1.67-1.54 (m, 2H), 1.49-1.36 (m, 2H), 1.16 (t, 7 = 3.6 Hz, 2H), 0.83 (d, J = 7.1 Hz, 2H),; 649.3 [M + H]⁺ 1.13 166

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (2,3,6- trifluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10- 7.02 (m, 1H), 6.87-6.80 (m, 2H) 6.73 (s, 1H), 6.65-6.61 (m, 1H), 6.43-6.17 (m, 3H), 5.90 (dd, J = 9.1,6.6 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.40-4.34 (m, 1H), 4.03- 3.94 (m, 1H), 3.82 (s, 3H), 3.07-2.86 (m, 6H), 2.77-2.68 (m, 3H), 2.56-2.48 (m, 2H), 2.31- 2.27 (m, 1H), 2.09-1.97 (m, 3H), 1.70-1.62 (m, 2H), 1.56-1.50 (m, 1H), 1.21 (d, J = 2.7 Hz, 3H), 0.67-0.57 (m, 2H), 0.46-0.31 (m, 2H); 693.5 [M + H]⁺ 1.20 167

N-(2-(4-((S)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (2,3,6- trifluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10- 7.01 (m, 1H), 6.87-6.81 (m, 2H), 6.73 (s, 1H), 6.64-6.61 (m, 1H), 6.42-6.18 (m, 3H), 5.90 (dd, J = 9.0, 6.6 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.39-4.33 (m, 1H), 4.02- 3.95 (m, 1H), 3.82 (s, 3H), 3.07-2.86 (m, 6H), 2.76-2.68 (m, 3H), 2.57-2.49 (m, 2H), 2.32- 2.28 (m, 1H), 2.09-1.98 (m, 3H), 1.69-1.59 (m, 2H), 1.56-1.50 (m, 1H), 1.21 (d, 3H), 0.66- 0.58 (m, 2H), 0.48-0.40 (m, 1H), 0.35-0.28 (m, 1H); 693.5 [M + H]⁺ 1.20 168

N-(5-((6- ((R)-3-(3- chloro-2,4- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.40 (s, 1H), 8.34 (d, J = 1.0 Hz, 1H), 7.49 (td, J = 8.4, 6.0 Hz, 1H), 7.09 (s, 1H), 6.95 (td, J = 8.5, 1.8 Hz, 1H), 6.74 (d, J = 1.8 Hz, 2H), 6.41-6.21 (m, 2H), 5.86 (dd, J = 8.8, 4,6 Hz, 1H), 5.74 (dd, J = 9.7, 1.8 Hz, 1H), 4.19-3.99 (m, 2H), 3.84 (s, 3H), 3.08 (d, J = 11.6 Hz, 2H), 2.80 (dp, J = 24.7, 12.3, 8.2 Hz, 10H), 2.12 (d, J = 12.1 Hz, 2H), 2.07 (s, 1H), 1.91-1.68 (m, 3H), 1.26 (d, J = 4.6 Hz, 1H), 0.92-0.81 (m, 1H), 0.55-0.39 (m, 4H),; 695.5 [M + H]⁺ 1.35 169

N-(2-(4-(4- cyclopropylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxy-5-((6- ((R)-3-(2,3,6- trifluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.83 (s, 1H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.08-7.03 (m, 1H), 6.86-6.82 (m, 2H), 6.73 (s, 1H), 6.63 (s, 1H), 6.42-6.17 (m, 3H), 5.91-5.87 (m, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 4.38-4.34 (m, 1H), 4.01- 3.96 (m, 1H), 3.82 (s, 3H), 3.07-3.03 (m, 2H), 2.75-2.59 (m, 12H), 2.36-2.30 (m, 1H), 2.09-2.05 (m, 2H), 1.72-1.66 (m, 2H), 0.47-0.42 (m, 4H); 679.5 [M + H]⁺ 1.23 170

N-(2-(4-(4- cyclopropylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxy-5-((6- ((R)-3-(2,3,4- trifluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.17 (s, 1H), 9.25 (s, 1H), 8.33 (s, 1H), 7.91 (s, 1H), 7.33 (dt, J = 9.8, 2.3 Hz, 1H), 7.24 (dd, J = 8.3, 5.3 Hz, 1H), 6.92 (s, 1H), 6.71 (dd, J = 17.0, 10.2 Hz, 1H), 6.29-6.12 (m, 2H), 5.73 (ddd, J = 28.1, 9.3, 3.7 Hz, 2H), 4.37- 4.31 (m, 3H), 4.07 (t, J = 7.9 Hz, 2H), 3.77 (s, 4H), 3.67 (s, 2H), 3.50 (d, J = 16.0 Hz, 1H), 3.23 (d, J = 11.5 Hz, 2H), 2.94 (t, J = 6.3 Hz, 2H), 2.82 (s, 2H), 2.37-2.29 (m, 1H), 2.17 (s, 2H), 2.10 (d, J = 7.0 Hz, 2H), 1.61 (d, J = 12.5 Hz, 1H), 1.48-1.38 (m, 1H), 1.23-1.15 (m, 2H), 0.84 (d, J = 7.0 Hz, 2H),; 679.3[M + H]⁺ 1.28 171

N-(2-(4- ((2S,5S)-4- cyclopropyl-2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,5- difluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.95 (s, 1H), 9.27 (s, 1H), 8.31 (s, 1H), 7.32 (td, J = 9.3, 4.4 Hz, 1H), 7.26-7.12 (m, 3H), 6.94 (d, J = 17.4 Hz, 1H), 6.80-6.51 (m, 1H), 6.28-6.11 (m, 2H), 5.76 (t, J = 5.3 Hz, 2H), 5.66 (dd, J = 8.6, 5.5 Hz, 2H), 4.03 (d, J = 8.2 Hz, 10H), 3.81 (d, J = 3.8 Hz, 6H), 3.56 (s, 3H), 3.35-3.10 (m, 5H), 3.02- 2.87 (m, 4H), 2.86-2.67 (m, 2H), 2.29 (dt, J = 13.1,6.5 Hz, 3H), 2.13 (s, 3H), 1.73 (s, 2H), 1.56 (s,6H); 689.6 [M + H]⁺ 1.41 172

N-(2-(4- ((2R,5R)-4- cyclopropyl-2,5-dimethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,5- difluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.00 (s, 1H), 9.25 (d, J = 28.6 Hz, 1H), 8.31 (s, 1H), 7.32 (td, J = 9.3, 4.5 Hz, 2H), 7.26-7.10 (m, 3H), 6.94 (d, J = 18.3 Hz, 1H), 6.79- 6.49 (m, 1H), 6.31-6.12 (m, 3H), 5.75 (d, J = 3.5 Hz, 1H), 5.66 (dd, J = 8.6, 5.6 Hz, 2H), 4.05 (t, J = 7.9 Hz, 4H), 3.81 (d, J = 4.1 Hz, 6H), 3.56 (s, 12H), 3.21 (d, J = 33.4 Hz, 5H), 3.03-2.87 (m, 4H), 2.88-2.64 (m, 3H), 2.36-2.22 (m, 3H), 2.14 (s, 3H), 1.74 (s, 3H), 1.57 (s, 6H),; 689.6 [M + H]⁺ 1.38 173

N-(2-(4- ((2R,5S)-4- cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 689.6 [M + H]⁺ 1.37 174

N-(2-(4- ((2S,5R)-4- cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 689.6 [M + H]⁺ 1.36 175

N-(2-(4-((S)-4- cyclopropyl-3- methylpiperazine- 1-yl)piperidine- 1-yl)-5-((6-((R)-3- (2,3-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.79 (s, 1H), 8.42 (s, 1H), 8.32 (s, 1H), 7.41-7.31 (m,2H), 7.09-7.00 (m, 2H), 6.74 (s, 1H)6.70 (s, 1H), 6.39-6.23 (m, 2H), 5.92 (dd, J = 8.6, 4.5 Hz, 1H), 5.74 (dd, J = 9.8, 1.6 Hz, 1H), 4.16-4.10 (m, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.84(s, 3H), 3.12-2.97 (m, 5H), 2.90- 2.81 (m, 1H), 2.78-2.42 (m, 6H), 2.34-2.25 (m, 1H), 2.18-2.08 (m, 3H), 1.82-1.69 (m, 2H), 1.65- 1.55 (m, 1H), 1.24 (d, J = 6.3 Hz, 3H), 0.72-0.59 (m, 2H), 0.51- 0.32 (m, 2H); 675.62 [M + H]⁺ 1.27 176

N-(2-(4-((R)-4- cyclopropyl-3- methylpiperazine- 1-yl)piperidine- 1-yl)-5-((6-((R)-3- (2,3-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.79 (s, 1H), 8.42 (s, 1H), 8.32 (s, 1H), 7.41-7.30 (m, 2H), 7.11-6.99 (m, 2H), 6.74 (s, 1H), 6.70 (s, 1H), 6.39-6.23 (m, 2H), 5.92 (dd, J = 8.6, 4.5 Hz, 1H), 5.74 (dd, J = 9.8, 1.6 Hz, 1H), 4.17- 4.10 (m, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.12-3.02 (m, 4H), 3.02-2.96 (m, 1H), 2.90- 2.81 (m, 1H), 2.78-2.41 (m, 6H), 2.35-2.26 (m, 1H), 2.17-2.07 (m, 3H), 1.80-1.68 (m, 2H), 1.63- 1.55 (m, 1H), 1.23 (d, J = 6.3 Hz, 3H), 0.70-0.58 (m, 2H), 0.50- 0.32 (m, 2H); 675.58 [M + H]⁺ 1.25 177

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-4-cyclopropyl-3- methylpiperazine- 1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.25 (S, 1H), 9.25 (s, 1H), 8.34 (s, 1H), 7.90 (s, 1H), 7.58 (dd, J = 7.1,2.1 Hz, 1H), 7.46-7.35 (m, 2H), 6.92 (s, 1H), 6.78- 6.68 (m, 1H), 6.26 (dd, J = 16.9, 2.0 Hz, 1H), 6.12 (s, 1H), 5.81-5.74 (m, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.35- 4.27 (m, 1H), 4.15-4.05 (m, 2H), 3.81 (s, 3H), 3.74-3.66 (m, 2H), 3.54-3.37 (m, 3H), 3.23 (s, 2H), 3.00-2.75 (m, 5H), 2.33 (dt, J = 7.8, 5.2 Hz, 1H), 2.25- 2.09 (m, 4H), 1.58-1.49 (m, 3H), 1.43 (s, 1H), 0.91 (d, J = 52.0 Hz, 4H),; 691.3 [M + H]⁺ 1.32 178

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2R,5R)-4-cyclopropyl-2,5- dimethylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.35 (s, 1H), 9.40 (s, 1H), 8.35 (s, 1H), 7.88 (d, J = 69.9 Hz, 1H), 7.59 (dd, J = 7.1, 2.2 Hz, 1H), 7.46-7.35 (m, 2H), 6.97 (d, J = 21.7 Hz, 1H), 6.80-6.55 (m, 1H), 6.26 (dd, J = 16.9, 1.9 Hz, 1H), 6.13 (s, 1H), 5.77 (dd, J = 10.2, 1.9 Hz, 1H), 5.54 (dd, J = 8.4, 5.5 Hz, 1H), 4.37- 4.29 (m, 2H), 4.14-4.01 (m, 3H), 3.82 (d, J = 3.5 Hz, 3H), 3.72 (s, 1H), 3.67- 3.53 (m, 2H), 3.38 (d, J = 6.7 Hz, 1H), 3.22 (dd, J = 29.9, 15.5 Hz, 3H), 3.08- 2.88 (m, 3H), 2.81 (d, J = 29.2 Hz, 1H), 2.32 (dd, J = 7.9, 5.0 Hz, 2H), 2.17 (d, J = 14.7 Hz, 2H), 1.77 (d, J = 7.0 Hz, 2H), 1.65-1.57 (m, 4H), 1.46-1.33 (m, 1H), 0.94-0.74 (m, 3H),; 705.3 [M + H]⁺ 1.39 179

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-4-cyclopropyl-3- methylpiperazine- 1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.08 (s, 1H), 8.22 (s, 1H), 8.07 (s, 1H), 7.56- 7.50 (m, 1H), 7.41 (t, J = 7.3 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.86 (s, 1H), 6.65 (dd, J = 16.8, 10.0 Hz, 1H), 6.33- 6.19 (m, 2H), 5.79-5.68 (m, 2H), 4.29- 4.19 (m, 1H), 3.94 (q, J = 8.1 Hz, 2H), 3.81 (s, 3H), 3.18 (d, J = 11.1 Hz, 4H), 2.87 (d, J = 9.3 Hz, 2H), 2.75 (t, J = 11.5 Hz, 3H), 2.29-2.20 (m, 2H), 2.16 (s, 3H), 1.99 (s, 3H), 1.91 (s, 3H), 1.38 (d, J = 16.4 Hz, 3H), 1.24 (s, 3H),; 691.5 [M + H]⁺ 1.38 180

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-4-cyclopropyl-3- methylpiperazine- 1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.03 (s, 1H), 8.76 (s, 1H), 8.18 (s, 1H), 7.52 (t, J = 7.4 Hz, 1H), 7.48-7.38 (m, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.84 (s, 1H), 6.60 (d, J = 12.0 Hz, 1H), 6.37 (s, 1H), 6.29- 6.17 (m, 1H), 5.73 (t, J = 7.5 Hz, 2H), 4.19 (d, J = 3.8 Hz, 1H), 3.88 (q, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.15 (d, J = 11.1 Hz, 4H), 2.83 (d, J = 8.7 Hz, 2H), 2.72 (s, 3H), 2.25-2.05 (m, 5H), 1.91 (s, 5H), 1.28-1.21 (m, 4H), 1.17 (s,4H),; 691.5 [M + H]⁺ 1.38 181

N-(5-((6-((R)- 3-(3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4-cyclopropyl- 3.3-dimethylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.28 (s, 1H), 8.16 (s, 1H), 7.54 (dd, J = 7.1, 2.3 Hz, 1H), 7.39 (ddd, J = 8.6, 4.6, 2.3 Hz, 1H), 7.21 (t, J = 8.9 Hz, 1H), 6.89 (s, 1H), 6.53 (dd, J = 17.0, 10.2 Hz, 1H), 6.43 (s, 1H), 6.35 (dd, J = 17.0, 1.6 Hz, 1H), 5.84-5.76 (m, 1H), 5.52 (dd, J = 8.6, 4.7 Hz, 1H), 4.14 (td, J = 7.9, 4.2 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.15 (d, J = 11.6 Hz, 2H), 3.09 (t, J = 5.2 Hz, 2H), 2.82- 2.76 (m, 2H), 2.72-2.64 (m, 2H), 2.35-2.28 (m, 1H), 2.20 (tt, J = 7.1,3.9 Hz, 1H), 2.03 (d, J = 12.1 Hz, 2H), 1.87-1.77 (m, 2H), 1.37 (s, 6H), 1.28 (s, 4H), 0.74 (d, J = 6.9 Hz, 2H), 0.69- 0.59 (m, 2H); 705.5 [M + H]⁺ 1.33 182

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-5-((6-((R)- 3-(2,3- difluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.41-7.13 (m, 4H), 6.82 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.75 (d, J = 4.6 Hz, 2H), 5.74-5.69 (m, 1H), 3.85 (q, J = 8.1 Hz, 2H), 3.79 (s, 4H), 3.04 (d, J = 11.1 Hz, 3H), 2.88-2.74 (m, 2H), 2.71-2.59 (m, 4H), 2.38-2.14 (m, 6H), 1.94 (dq, J = 9.6, 5.8, 5.2 Hz, 3H), 1.82 (s, 8H), 1.80-1.66 (m, 5H), 1.66-1.56 (m, 3H), 1.23 (s, 1H),; 675.6 [M + H]⁺ 1.21 183

N-(5-((6-((R)- 3-(3- cyanophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (s, 1H), 7.83 (d, J = 1.8 Hz, 1H), 7.79-7.72 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (dd, J = 10.1,2.0 Hz, 1H), 5.59 (dd, J = 8.7, 5.0 Hz, 1H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.79 (s, 3H), 3.33 (s, 8H), 3.04 (d, J = 11.1 Hz, 2H), 2.78 (dtd, J = 12.0, 7.8, 3.9 Hz, 2H), 2.71-2.60 (m, 4H), 2.25 (tq, J = 8.2, 5.1 Hz, 6H), 2.08 (s, 3H), 2.01-1.90 (m, 3H), 1.66- 1.56 (m, 3H),; 664.5 [M + H]⁺ 1.09 184

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3- (naphthalene- 1-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.46 (s, 1H), 8.37 (s, 1H), 8.15 (d, J-8.3 Hz, 1H), 7.89-7.87 (m, 1H), 7.79-7.75 (m, 2H), 7.55-7.45 (m, 3H), 6.93 (s, 1H), 6.78- 6.75 (m, 2H), 6.41-6.21 (m, 4H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 4.20-4.15 (m, 2H), 3.85 (s, 3H), 3.08-3.04 (m, 2H), 2.99-2.94 (m, 1H), 2.78-2.64 (m, 8H), 2.41-2.31 (m, 4H), 2.10- 2.07 (m, 2H), 1.95-1.83 (m, 4H), 1.75-1.69 (m, 4H); 689.6 [M + H]⁺ 1.24 185

N-(5-((6-((R)- 3-(3- chlorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.23 (d, J = 3.1 Hz, 1H), 8.06 (s, 1H), 7.43 (q, J = 2.9, 2.4 Hz, 1H), 7.39 (d, J = 7.5 Hz, 1H), 7.35 (ddd, J = 7.4, 5.0, 1.8 Hz, 2H), 6.85 (s, 1H), 6.63 (dd, J = 17.0, 10.2 Hz, 1H), 6.28- 6.19 (m, 2H), 5.77-5.70 (m, 1H), 5.53 (dd, J = 8.6, 5.3 Hz, 1H), 4.21 (dq, J = 7.4, 3.7, 2.8 Hz, 4H), 3.91 (ddd, J = 13.2, 8.5, 4.8 Hz, 4H), 3.81 (s, 5H), 3.17 (d, J = 11.5 Hz, 4H), 2.89-2.81 (m, 1H), 2.76 (t, J = 11.7 Hz, 3H), 2.28 (dq, J = 8.9, 5.1, 3.8 Hz, 1H), 2.18 (d, J = 8.9 Hz, 4H), 2.04 (s, 2H), 1.94-1.83 (m, 2H), 1.75 (dt, J = 18.8, 10.1 Hz, 2H),; 673.5 [M + H]⁺ 1.22 186

N-(2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3,4- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.11 (s, 1H), 9.23 (s, 1H), 8.32 (s, 1H), 7.92 (s, 1H), 7.49- 7.38 (m, 2H), 7.22 (dq, J = 7.9, 2.7 Hz, 1H), 6.91 (s, 1H), 6.72 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.12 (s, 1H), 5.75 (d, J = 5.4 Hz, 1H), 5.53 (dd, J = 8.5, 5.4 Hz, 1H), 4.29 (dd, J = 7.6, 4.5 Hz, 1H), 4.10- 4.00 (m, 1H), 3.81 (s, 3H), 3.63 (s, 6H), 3.46 (d, J = 13.8 Hz, 3H), 3.23 (d, J = 11.5 Hz, 2H), 2.97- 2.87 (m, 1H), 2.81 (t, J = 11.8 Hz, 2H), 2.44- 2.29 (m, 3H), 2.24-2.14 (m, 4H), 2.09 (s, 1H), 1.84-1.69 (m, 2H), 1.63-1.55 (m, 1H), 1.48- 1.40 (m, 1H),; 675.3 [M + H]⁺ 1.21 187

N-(2-(4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (2,3,4- trifluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phen- yl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.70 (s, 1H), 9.17 (s, 1H), 8.28 (s, 1H), 7.99 (s, 1H), 7.40- 7.24 (m, 2H), 6.89 (s, 1H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.24 (dd, J = 17.1,2.0 Hz, 2H), 5.78-5.74 (m, 1H), 5.70 (dd, J = 8.6, 5.5 Hz, 1H), 4.30 (d, J = 4.2 Hz, 1H), 4.09 (d, J = 5.2 Hz, 1H), 4.01 (d, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.74 (s, 1H), 3.65 (d, J = 12.7 Hz, 3H), 3.47- 3.35 (m, 3H), 3.22 (d, J = 11.3 Hz, 2H), 2.96- 2.88 (m, 1H), 2.79 (t, J = 11.8 Hz, 2H), 2.39 (s, 1H), 2.34-2.28 (m, 1H), 2.19 (t, J = 11.3 Hz, 4H), 2.07 (d, J = 16.0 Hz, 3H), 1.74 (dd, J = 20.6, 10.5 Hz, 2H), 1.63-1.54 (m, 1H), 1.46- 1.39 (m, 1H),; 693.3 [M + H]⁺ 1.28 188

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.14 (t, J = 1.4 Hz, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.70 (td, J = 9.2, 8.5, 3.5 Hz, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (S, 3H), 3.05 (d, J = 11.1 Hz, 2H), 2.83 (dtd, J = 12.0, 7.9, 3.7 Hz, 2H), 2.71-2.62 (m, 3H), 2.54 (s, 1H), 2.42 (s, 4H), 2.37-2.16 (m, 5H), 2.13- 2.04 (m, 2H), 1.96 (s, 3H), 1.83 (s, 3H), 1.64 (d, J = 6.4 Hz, 2H), 1.24 (d, J = 6.0 Hz, 5H),; 687.5 [M + H]⁺ 1.25 189

N-(5-((6-((R)- 3-(3-chloro-5- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide 691.45 [M + H]⁺ 1.28 190

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (naphthalene- 2-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 ( s, 1H), 8.22 (d , J = 3.7 Hz, 1H), 8.07 (s, 1H), 7.96- 7.85 (m, 4H), 7.52 (dtd, J = 14.9, 8.1,7.4, 3.5 Hz, 3H), 6.84 (s, 1H), 6.63 (dd, J = 16.9, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 2H), 5.78- 5.62 (m, 2H), 4.26 (dd, J = 8.4, 4.5 Hz, 2H), 4.01-3.93 (m, 2H), 3.79 (s, 3H), 3.67-3.59 (m, 6H), 3.16 (d, J = 11.4 Hz, 4H), 2.96-2.85 (m, 2H), 2.73 (q, J = 14.7, 13.3 Hz, 2H), 2.37 (tdd, J = 11.2, 5.9, 3.9 Hz, 1H), 2.16 (d, J = 9.6 Hz, 4H), 2.02 (s, 2H), 1.89 (d, J = 15.9 Hz, 2H), 1.73 (dd, J = 18.6, 9.5 Hz, 2H),; 689.6 [M + H]⁺ 1.23 191

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- ethynylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.13 (s, 1H), 9.22 (s, 1H), 8.32 (s, 1H), 7.91 (s, 1H), 7.46 (s, 1H), 7.40 (s, 3H), 6.90 (s, 1H), 6.72 (dd, J = 17.0, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.79-5.74 (m, 2H), 5.52 (dd, J = 8.4, 5.6 Hz, 1H), 4.32 (d, J = 4.4 Hz, 1H), 4.24 (s, 1H), 4.06 (d, J = 7.8 Hz, 1H), 3.80 (s, 3H), 3.75 (s, 1H), 3.65 (d, J = 12.4 Hz, 4H), 3.45 (d, J = 13.8 Hz, 3H), 3.23 (d, J = 11.3 Hz, 2H), 2.94 (dd, J = 8.2, 4.4 Hz, 1H), 2.80 (t, J = 11.5 Hz, 2H), 2.41 (t, J = 10.2 Hz, 2H), 2.35-2.29 (m, 1H), 2.25-2.16 (m, 4H), 2.09 (d, J = 6.6 Hz, 2H), 1.73 (dd, J = 20.1, 10.2 Hz, 2H), 1.64- 1.58 (m, 1H), 1.47-1.39 (m, 1H), 663.4 [M + H]⁺ 1.09 192

N-(5-((6-((R)- 3-(2-chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.09 (d, J = 13.7 Hz, 1H), 8.22 (s, 1H), 8.08 (s, 1H), 7.44- 7.31 (m, 3H), 6.85 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.33-6.18 (m, 2H), 5.82-5.70 (m, 2H), 4.20 (td, J = 7.9, 4.0 Hz, 3H), 3.95 (d, J = 8.0 Hz, 4H), 3.81 (s, 3H), 3.71 (s, 3H), 3.17 (d, J = 11.6 Hz, 4H), 2.94 (dtd, J = 12.1,7.9, 4.0 Hz, 2H), 2.76 J = 11.7 Hz, 2H), 2.23-2.08 (m, 5H), 2.04 (d, J = 11.6 Hz, 2H), 1.90 (d, J = 10.4 Hz, 2H), 1.75 (dt, J = 18.8, 8.6 Hz, 2H),; 691.5[M + H]⁺ 1.21 193

N-(5-((6-((R)- 3-(3-chloro- 2,4- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclobutylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (d, J = 15.4 Hz, 1H), 8.21 (d, J = 2.2 Hz, 1H), 8.10(s, 1H), 7.47 (td, J = 8.5, 6.1 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.84 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.32 (s, 1H), 6.23 (dd, J = 16.9, 1.9 Hz, 1H), 5.78-5.66 (m, 2H), 4.22 (td, J = 7.9, 3.6 Hz, 2H), 3.91 (s, 4H), 3.81 (s, 3H), 3.43 (t, J = 7.0 Hz, 4H), 3.20-3.11 (m, 4H), 2.85 (dq, J = 8.5, 5.6, 4.3 Hz, 2H), 2.80- 2.71 (m, 2H), 2.28-2.21 (m, 1H), 2.16 (q, J = 10.9, 10.3 Hz, 4H), 2.03 (d, J = 11.2 Hz, 2H), 1.89 (d, J = 16.1 Hz, 2H), 1.74 (dt, J = 18.6, 9.6 Hz, 2H),; 709.5 [M + H]⁺ 1.33 194

N-(2-(4-(4- cyclobutylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3- (2,3,6- trifluorophenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.08-7.03 (m, 1H), 6.86-6.82 (m, 2H), 6.74 (s, 1H), 6.63 (s, 1H), 6.45-6.14 (m, 3H), 5.91-5.87 (m, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 4.38-4.32 (m, 1H), 4.01-3.95 (m, 1H), 3.82 (s, 3H), 3.07-3.02 (m, 2H), 2.77-2.54 (m, 12H), 2.34-2.30 (m, 1H), 2.10-2.07 (m, 2H), 1.94-1.83 (m, 4H), 1.72-1.64 (m, 4H); 693.5 [M + H]⁺ 1.19 195

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1 H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.37-7.33 (m, 1H), 7.07-7.02 (m, 2H), 6.94 (s, 1H), 6.76-6.74 (m, 2H), 6.39-6.20 (m, 3H), 5.94-5.91 (m, 1H), 5.75-5.72 (m, 1H), 4.70-4.63 (m, 4H), 4.17-4.04 (m, 3H), 3.85 (s, 3H), 3.55-3.51 (m, 1H), 3.09- 3.04 (m, 2H), 2.90-2.70 (m, 7H), 2.42- 2.29 (m,4H), 2.11-2.06 (m, 2H), 1.70- 1.67 (m,2H); 677.5 [M + H]⁺ 1.24 196

N-(5-((6-((R)- 3-(3- cyanophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.79 (d, J = 1.9 Hz, 1H), 7.71 (d, J = 7.8 Hz, 1H), 7.56-7.52 (m, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.94 (s, 1H), 6.76-6.71 (m, 2H), 6.45- 6.14 (m, 3H), 5.76-5.70 (m, 2H), 4.70- 4.62 (m, 4H), 4.18-4.07 (m, 2H), 3.85 (s, 3H), 3.55-3.46 (m, 2H), 3.09-3.03 (m, 2H), 2.86-2.67 (m, 7H), 2.43-2.31 (m, 4H), 2.10-2.04 (m, 2H), 1.71-1.66 (m, 2H); 666.5 [M + H]⁺ 1.10 197

N-(5-((6-((R)- 3-(2,4- difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.43 (s, 1H), 8.37 (s, 1H), 7.56 (m, 1H), 6.92 (s, 1H), 6.79 (m, 4H), 6.36 (d, J = 16.8 Hz, 1H), 6.26 m, 1H), 5.87 (m, 1H), 5.74 (d, J = 10.3 Hz, 1H), 4.10 (m, 2H), 3.85 (s, 3H), 3.51 (m, 2H), 3.07 (d, J = 11.7 Hz, 2H), 2.87- 2.63 (m, 8H), 2.36 (d, J = 67.9 Hz, 6H), 2.11-2.04 (m, 2H), 1.68 (m, 4H);677.5 [M + H]⁺ 1.21 198

N-(4-methoxy- 5-((6-((R)-3- (naphthalene- 1-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4-(oxetane- 3-yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.44 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (d, J = 7.8 Hz, 1H), 7.77 (dd, J = 7.8, 4.7 Hz, 2H), 7.55-7.44 (m, 3H), 6.94 (s, 1H), 6.77 (d, J = 10.4 Hz, 2H), 6.43-6.22 (m, 4H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.69-4.63 (m, 4H), 4.20-4.14 (m, 2H), 3.85 (s, 3H), 3.55-3.47 (m, 2H), 3.10- 3.05 (m, 2H), 2.98-2.94 (m, 1H), 2.78- 2.68 (m, 6H), 2.45-2.38 (m, 4H), 2.10- 2.05 (m, 2H), 1.70-1.67 (m, 2H); 691.5 [M + H]⁺ 1.22 199

N-(5-((6- ((R)-3-(3- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(4- (oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.21 (s, 1H), 9.07 (s, 1H), 8.24 (s, 1H), 8.05 (s, 1H), 7.43 (d, J = 1.9 Hz, 1H), 7.42-7.39 (m, 1H), 7.36 (dd, J = 4.7, 2.5 Hz, 2H), 6.86 (s, 1H), 6.62 (dd, J = 16.9, 10.2 Hz, 1H), 6.28-6.20 (m, 2H), 5.75 (d, J = 10.3 Hz, 1H), 5.53 (dd, J = 8.6, 5.3 Hz, 1H), 4.60 (t, J = 6.6 Hz, 2H), 4.47 (t, J = 6.1 Hz, 2H), 4.22 (td, J = 7.8, 3.9 Hz, 3H), 3.81 (s, 3H), 3.63 (q, J = 6.2 Hz, 2H), 3.32 (s, 2H), 3.17 (t, J = 6.1 Hz, 4H), 3.06-2.93 (m, 2H), 2.85 (dtd, J = 12.0, 7.6, 3.9 Hz, 1H), 2.75 (t, J = 11.7 Hz, 2H), 2.28 (tdd, J = 12.8, 9.7, 5.7 Hz, 2H), 2.10 (d, J = 10.1 Hz, 2H), 1.92 (d, J = 10.1 Hz, 2H),; 675.5 [M + H]⁺ 1.24 200

N-(4- methoxy-5- ((6-((R)-3- (naphthalene- 2-yl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-(4-(4- (oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (d, J = 3.3 Hz, 1H), 8.24 (d, J = 6.6 Hz, 1H), 8.04 (d, J = 8.3 Hz, 1H), 7.97-7.88 (m, 4H), 7.52 (qt, J = 7.5, 3.4 Hz, 3H), 6.85 (s, 1H), 6.68-6.58 (m, 1H), 6.28-6.18 (m, 2H), 5.79-5.63 (m, 2H), 4.60 (t, J = 6.6 Hz, 2H), 4.47 (dt, J = 9.5, 4.7 Hz, 2H), 4.33-4.24 (m, 2H), 3.99 (dd, J = 16.2, 7.9 Hz, 4H), 3.79 (s, 3H), 3.65-3.58 (m, 2H), 3.32 (s, 2H), 3.16 (d, J = 4.6 Hz, 4H), 3.00- 2.91 (m, 1H), 2.75 (t, J = 11.8 Hz, 2H), 2.43- 2.30 (m, 2H), 2.12 (dd, J = 17.1,7.3 Hz, 2H), 1.92 (d, J = 10.5 Hz, 2H),; 691.5 [M + H]⁺ 1.23 201

N-(5-((6- ((R)-3-(2- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(4- (oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.22 (s, 1H), 8.07 (s, 1H), 7.45-7.31 (m, 3H), 6.86 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.34-6.17 (m, 2H), 5.83-5.71 (m, 2H), 4.60 (t, J = 6.6 Hz, 2H), 4.47 (t, J = 6.1 Hz, 2H), 4.21 (td, J = 7.8, 3.9 Hz, 2H), 3.97-3.95 (m, 4H), 3.81 (s, 3H), 3.62 (p, J = 6.4 Hz, 2H), 3.44 (q, J = 7.0 Hz, 1H), 3.32 (t, J = 12.1 Hz, 1H), 3.21- 3.11 (m, 3H), 2.96 (tq, J = 8.1,3.9 Hz, 2H), 2.75 (t, J = 11.9 Hz, 2H), 2.32 (s, 1H), 2.14 (ddd, J = 12.3, 8.1,4.5 Hz, 3H), 1.98-1.86 (m, 2H),; 693.5 [M + H]⁺ 1.25 202

N-(5-((6- ((R)-3-(3- chloro-2,4- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(4- (oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.21 (s, 1H), 8.10 (s, 1H), 7.47 (td, J = 8.6, 6.2 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.85 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.33 (s, 1H), 6.23 (dd, J = 17.0, 1.9 Hz, 1H), 5.77-5.66 (m, 2H), 4.60 (t, J = 6.6 Hz, 2H), 4.46 (t, J = 6.1 Hz, 2H), 4.22 (td, J = 7.8, 3.7 Hz, 1H), 3.91 (q, J = 8.2 Hz, 3H), 3.81 (s, 3H), 3.44 (d, J = 7.0 Hz, 1H), 3.31 (s, 2H), 3.17 (d, J = 11.7 Hz, 4H), 2.99 (s, 2H), 2.84 (qd, J = 8.2, 3.9 Hz, 1H), 2.73 (q, J = 18.0, 15.1 Hz, 2H), 2.34-2.19 (m, 3H), 2.11 (t, J = 10.0 Hz, 2H), 1.90 (dd, J = 15.0, 9.0 Hz, 2H),; 711.4 [M + H]⁺ 1.33 203

N-(2-(4-(4- (cyclopropyl methyl) piper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,4- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.56 (q, J = 8.2 Hz, 1H), 6.93 (s, 1H), 6.82 (td, J = 12.6, 11.4, 7.9 Hz, 2H), 6.75 (d, J = 3.0 Hz, 2H), 6.39-6.32 (m, 1H), 6.24 (dd, J = 17.0, 10.0 Hz, 1H), 5.87 (dd, J = 8.6, 4.3 Hz, 1H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 4.14-4.06 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.3 Hz, 2H), 2.83-2.65 (m, 8H), 2.35-2.26 (m, 4H), 2.09 (d, J = 12.8 Hz, 2H), 0.90-0.82 (m, 6H), 0.53 (d, J = 7.7 Hz, 2H), 0.13 (d, J = 5.0 Hz, 2H),; 675.5 [M + H]⁺ 1.18 204

N-(2-(4-(4- (cyclopropylmethyl)piper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,3- dichlorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.42 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (dd, J = 7.9, 1.6 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.93 (s, 1H), 6.75 (s, 2H), 6.40-6.32 (m, 1H), 6.30-6.21 (m, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.15-4.04 (m, 2H), 3.85 (s, 3H), 3.64 (s, 2H), 3.07 (d, J = 10.7 Hz, 4H), 3.00- 2.90 (m, 2H), 2.88-2.68 (m, 7H), 2.45-2.30 (m, 3H), 2.27-2.19 (m, 1H), 2.14-2.04 (m, 2H), 0.91-0.80 (m, 1H), 0.60 (s, 2H), 0.20 (s, 2H); 707.4 [M + H]⁺ 1.31 205

N-(2-(4-(4- cyclopentyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,4- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.56 (q, J = 8.3 Hz, 1H), 6.93 (s, 1H), 6.87-6.74 (m, 4H), 6.35 (d, J = 17.3 Hz, 1H), 6.24 (dd, J = 17.0, 10.1 Hz, 1H), 5.87 (dd, J = 8.7, 4.3 Hz, 1H), 5.74 (dd, J = 10.2, 1.5 Hz, 1H), 4.14-4.05 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.8 Hz, 4H), 2.87-2.66 (m, 8H), 2.32-2.21 (m, 2H), 2.09 (d, J = 12.4 Hz, 2H), 1.91 (s, 2H), 1.70 (s, 4H), 1.45 (s, 6H),; 689.5 [M + H]⁺ 1.22 206

N-(2-(4-(4- cyclopentyl- piperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,3- dichlorophenyl)- isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.39-8.34 (m, 2H), 7.59 (d, J = 7.2 Hz, 1H), 7.37 (d, J = 7.9 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 7.06 (s, 1H), 6.74 (s, 2H), 6.39-6.33 (m, 1H), 6.31-6.21 (m, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (d, J = 10.1 Hz, 1H), 4.15-4.03 (m, 2H), 3.85 (s, 3H), 3.66 (hept, J = 6.6 Hz, 6H), 3.12-3.05 (m, 10H), 2.79-2.69 (m, 3H), 2.11- 1.99 (m, 6H), 1.93-1.81 (m, 3H); 721.5 [M + H]⁺ 1.35 207

N-(5-((6- ((R)-3-(2,4- difluorophenyl)- isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxy-2- (4-(4-(tetrahydro- 2H-pyran-4- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.37 (s, 2H), 7.56 (m, 1H), 6.95 (s, 1H), 6.82 (m, 2H), 6.75 (m, 2H), 6.35 (m, 2H), 5.80 (m, 1H), 5.75 (d, J = 11.2 Hz, 1H), 4.08 (s, 4H), 3.85 (s, 3H), 3.40 (m, 5H), 3.31 (s, 2H), 3.08 (m, 4H), 2.79 (m, 7H), 2.30 (s, 4H), 1.44 (d, J = 6.5 Hz, 1H), 1.23-1.13 (m, 3H); 705.5 [M + H]⁺ 1.21 208

N-(5-((6-((R)- 3-(2,3-dichlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-(tetrahydro- 2H-pyran-4- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.36 (s, 1H), 7.59 (d, J = 7.9 Hz, 1H), 7.37 (d, J = 8.0 Hz, 1H), 7.19 (t, J = 7.9 Hz, 2H), 6.98 (s, 1H), 6.74 (d, J = 8.9 Hz, 2H), 6.49-6.21 (m, 2H), 5.96 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (d, J = 10.1 Hz, 1H), 4.12-4.03 (m, 3H), 3.85 (s, 3H), 3.40 (t, J = 11.9 Hz, 2H), 3.35-3.27 (m, 2H), 3.15-3.04 (m, 3H), 3.01-2.86 (m, 3H), 2.86- 2.67 (m, 6H), 2.27-2.18 (m, 2H), 2.10-2.02 (m, 2H), 1.48-1.42 (m, 4H), 1.39 (d, J = 6.7 Hz, 3H); 737.5 [M + H]⁺ 1.30 209

N-(2-(4-(4- allylpiperazine- 1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.40-7.26 (m, 2H), 7.25-7.15 (m, 1H), 6.82 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.74 (d, J = 10.1 Hz, 4H), 5.22- 5.06 (m, 2H), 3.85 (q, J = 8.0 Hz, 2H), 3.79 (s, 4H), 3.04 (d, J = 11.0 Hz, 3H), 2.92 (d, J = 6.4 Hz, 2H), 2.81 (dtd, J = 12.0, 7.9, 3.7 Hz, 2H), 2.71-2.61 (m, 3H), 2.46-2.29 (m, 4H), 2.22 (dddd, J = 20.8, 12.9, 7.8, 4.3 Hz, 2H), 1.85 (s, 8H), 1.78-1.63 (m, 2H),; 661.5 [M + H]⁺ 1.20 210

N-(2-(4-(4- allylpiperazine- 1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- cyanophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide 650.5 [M + H]⁺ 1.11 211

N-(2-(4-(4- allylpiperazine- 1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- chloro-2- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.35 (s, 1H), 8.17 (d, J = 0.7 Hz, 1H), 7.54 (t, J = 8.2 Hz, 1H), 7.26-7.16 (m, 2H), 6.91 (s, 1H), 6.57 (dd, J = 17.0, 10.3 Hz, 1H), 6.50 (s, 1H), 6.36 (dd, J = 17.0, 1.4 Hz, 1H), 5.97-5.83 (m, 2H), 5.82- 5.72 (m, 2H), 5.25 (d, J = 11.0 Hz, 3H), 4.14 (td, J = 7.9, 4.3 Hz, 1H), 4.00 (t, J = 8.0 Hz, 1H), 3.88 (s, 6H), 3.64-3.54 (m, 1H), 3.10 (d, J = 6.9 Hz, 3H), 2.81-2.73 (m, 4H), 2.52 (dd, J = 10.9, 5.7 Hz, 1H), 2.49-2.41 (m, 2H), 2.26 (ddd, J = 20.5, 10.3, 6.5 Hz, 1H), 2.06 (d, J = 11.4 Hz, 2H), 1.77 (tt, J = 11.7, 6.0 Hz, 2H); 677.5 [M + H]⁺ 1.29 212

N-(2-(4-(4- allylpiperazine- 1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3,4- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.34 (s, 1H), 8.18 (s, 1H), 7.40-7.32 (m, 1H), 7.27-7.23 (m, 2H), 6.92 (s, 1H), 6.60 (dd, J = 16.9, 10.3 Hz, 1H), 6.47 (s, 1H), 6.39 (s, 1H), 6.34 (d, J = 1.8 Hz, 1H), 6.29 (d, J = 1.8 Hz, 1H), 6.14 (dd, J = 17.3, 10.3 Hz, 2H), 5.99-5.87 (m, 2H), 5.82 (dt, J = 7.6, 2.3 Hz, 2H), 5.55 (dd, J = 8.5, 4.6 Hz, 1H), 5.39 (s, 1H), 4.15 (td, J = 7.9, 4.3 Hz, 1H), 3.98 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.38- 3.34 (m, 2H), 3.18 (s, 4H), 2.98 (d, J = 3.4 Hz, 4H), 2.81 (dt, J = 7.8, 6.2 Hz, 3H), 2.39-2.28 (m, 1H), 2.15 (d, J = 10.9 Hz, 2H), 1.95 (dt, J = 23.4, 11.8 Hz, 3H); 661.5 [M + H]⁺ 1.18 213

N-(2-(4-(4- allylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3-chloro-2- methylphenyl)- isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.15-8.14 (m, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.21 (d, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.87-5.74 (m, 1H), 5.70 (td, J = 8.9, 8.2, 3.4 Hz, 2H), 5.23-5.10 (m, 2H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.79 (s, 3H), 3.09- 3.01 (m, 3H), 2.95 (d, J = 6.4 Hz, 3H), 2.83 (dtd, J = 12.1, 8.0, 3.8 Hz, 2H), 2.66 (t, J = 11.6 Hz, 3H), 2.58 (s, 3H), 2.54 (s, 2H), 2.42 (s, 4H), 2.08 (dtd, J = 12.6, 8.1, 5.0 Hz, 2H), 1.91 (s, 4H), 1.85 (d, J = 12.0 Hz, 3H), 1.78-1.65 (m, 3H),; 673.5 [M + H]⁺ 1.28 214

N-(2-(4-(4- allylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- chloro-5- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide 677.4 [M + H]⁺ 1.29 215

N-(2-(4-(4- allylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3-(3- methoxy- phenyl)isoxazol- idine-2- yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.17 (s, 1H), 7.26 (t, J = 8.2 Hz, 1H), 7.00 (d, J = 6.8 Hz, 2H), 6.91 (s, 1H), 6.83 (dd, J = 8.2,1.7 Hz, 1H), 6.63 (dd, J = 16.9,10.3 Hz, 1H), 6.41-6.32 (m, 2H), 5.98-5.88 (m, 1H), 5.81 (d, J = 11.3 Hz, 1H), 5.50 (dd, J = 8.4,4.8 Hz, 1H), 5.41 (t, J = 14.1 Hz, 2H), 4.19 (td, J = 7.8, 4.5 Hz, 1H), 4.01 (q, J = 7.9 Hz, 1H), 3.86 (s, 3H), 3.80 (s, 3H), 3.18 (s, 2H), 2.87-2.78 (m, 3H), 2.41-2.30 (m, 1H), 2.18 (s, 2H), 1.99 (d, J = 9.8 Hz, 2H); 655.5 [M + H]⁺ 1.08 216

N-(2-(4-(4- allylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- ethynylphenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.17 (s, 1H), 8.03 (s, 1H), 7.48 (s, 1H), 7.39 (s, 1H), 6.93 (s, 1H), 6.58 (dd, J = 17.0, 10.2 Hz, 1H), 6.39 (dd, J = 17.0, 1.3 Hz, 1H), 6.09 (s, 1H), 5.94 (dd, J = 17.1, 10.2 Hz, 1H), 5.83 (d, J = 11.3 Hz,1H), 5.53-5.42 (m, 3H), 4.36 (td, J = 7.6, 4.3 Hz, 1H), 4.13 (dd, J = 15.3, 8.0 Hz, 1H), 3.85 (s, 3H), 3.55 (s, 1H), 3.49 (d, J = 6.5 Hz, 2H), 3.25 (d, J = 11.2 Hz, 4H), 2.90-2.80 (m, 2H), 2.47-2.36 (m, 1H), 2.20-2.11 (m, 2H), 2.01 (s, 2H) 1.95 (d, J = 8.7 Hz, 1H), 1.31 (s, 1H); 649.5 [M + H]⁺ 1.17 217

N-(2- ((1S,4S)-5- ethyl-2,5- diazabicyclo[2.2.1]heptane- 2-yl)-4- methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.58-8.51 (m, 2H), 8.35 (s, 1H), 8.03 (s, 1H), 7.70 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.88 (s, 1H), 6.77 (s, 1H), 6.62 (s, 1H), 6.38 (s, 2H), 5.79-5.61 (m, 2H), 4.22-4.13 (m, 1H), 4.03 (q, J = 7.9 Hz, 1H), 3.91 (t, J = 6.3 Hz, 2H), 3.87 (s, 3H), 3.18-3.11 (m, 1H), 2.92-2.88 (m, 1H), 2.79-2.70 (m, 2H), 2.54 (s, 3H), 2.43- 2.24 (m, 2H), 2.01 (s, 2H), 1.47-1.30 (m, 2H), 1.22-1.02 (m, 3H),; 557.5 [M + H]⁺ 0.93 218

N-(4- methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- 2-(4-(oxetane-3- yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.49 (s, 1H), 8.37 (s, 1H), 7.70 (dd, J = 8.1, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 7.00 (s, 1H), 6.81 (s, 1H), 6.72 (s, 1H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.25 (dd, J = 17.0, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 5.72-5.69 (m, 1H), 4.69 (dt, J = 21.2, 6.3 Hz, 4H), 4.20-4.06 (m, 2H), 3.84 (s, 3H), 3.61 (p, J = 6.4 Hz, 1H), 2.95 (dt, J = 4.6, 2.7 Hz, 4H), 2.84-2.73 (m, 2H), 2.54 (s, 6H), 2.37 (dp, J = 11.8, 3.9, 3.5 Hz, 1H),; 573.4 [M + H]⁺ 0.99 219

N-(2-(4-(2- (dimethylamino)ethyl)piper- azine-1-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.52 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.0, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.99 (s, 1H), 6.80 (s, 1H), 6.71 (s, 1H), 6.36 (dd, J = 16.9, 1.7 Hz, 1H), 6.26- 6.23 (m, 1H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 5.71-5.69 (m, 1H), 4.20-4.04 (m, 2H), 3.84 (s, 3H), 3.67-3.63 (m, 1H), 2.96-2.91 (m, 4H), 2.80-2.70 (m, 8H), 2.53-2.52 (m, 8H), 2.36 (dq, J = 11.8, 3.6 Hz, 2H),; 588.5 [M + H]⁺ 0.96 220

N-(2-(4- isopropylpiper- azine-1-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.09 (s, 1H), 9.36 (s, 1H), 9.27 (s, 1H), 8.75 (d, J = 2.1 Hz, 1H), 8.46 (dd, J = 8.3, 2.1 Hz, 1H), 8.28 (s, 1H), 8.11 (s, 1H), 7.92 (d, J = 8.4 Hz, 1H), 6.82 (s, 1H), 6.40-6.14 (m, 2H), 5.78-5.68 (m, 2H), 4.29 (q, J = 7.0, 6.4 Hz, 2H), 4.03 (q, J = 7.8 Hz, 2H), 3.84 (s, 3H), 3.60 (dd, J = 6.6, 2.7 Hz, 1H), 3.57 (s, 3H), 3.41 (s, 3H), 3.34 (d, J = 11.7 Hz, 2H), 3.25-3.16 (m, 2H), 3.11 (tt, J = 7.3, 3.7 Hz, 2H), 2.92 (dq, J = 11.9, 7.5, 6.0 Hz, 1H), 2.75 (s, 3H), 2.40 (td, J = 13.0, 7.8 Hz, 1H),; 589.5 [M + H]⁺ 1.03 221

N-(2-((R)-3- (dimethylami no)pyrolidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.27 (s, 1H), 9.98 (s, 1H), 9.66 (s, 1H), 8.76 (d, J = 2.1 Hz, 1H), 8.46 (d, J = 8.4 Hz, 1H), 8.30 (s, 1H), 7.93 (d, J = 8.3 Hz, 1H), 7.59 (s, 1H), 6.88 (dd, J = 17.2, 10.1 Hz, 1H), 6.69 (s, 1H), 6.21 (dd, J = 17.1,2.1 Hz, 1H), 5.72 (td, J = 11.9, 10.1, 4.7 Hz, 2H), 4.31 (s, 1H), 4.07-4.02 (m, 3H), 3.88 (t, J = 6.1 Hz, 3H), 3.82 (s, 3H), 3.63 (d, J = 10.4 Hz, 1H), 3.57 (s, 2H), 3.51 (s, 1H), 3.43- 3.36 (m, 1H), 3.17 (s, 1H), 3.06 (q, J = 8.2 Hz, 1H), 2.96 (d, J = 6.4 Hz, 1H), 2.80 (d, J = 2.8 Hz, 3H), 2.76 (s, 1H), 2.30 (s, 1H),; 545.5 [M + H]⁺ 0.92 222

N-(2-((S)-3- (dimethylamin o)pyrolidine-1- yl)-4-methoxy- 5-((6-((R)-3- (6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.18 (s, 1H), 9.61 (s, 1H), 8.75 (d, J = 2.1 Hz, 1H), 8.44 (d, J = 8.5 Hz, 1H), 8.27 (s, 1H), 7.91 (d, J = 8.4 Hz, 1H), 7.65 (s, 1H), 6.94-6.81 (m, 1H), 6.69 (s, 1H), 6.21 (dd, J = 17.1,2.1 Hz, 2H), 5.77-5.68 (m, 2H), 4.28 (d, J = 6.2 Hz, 1H), 4.06-4.00 (m, 1H), 3.88 (d, J = 5.8 Hz, 1H), 3.82 (d, J = 3.2 Hz, 3H), 3.57 (s, 3H), 3.09 (s, 1H), 3.05- 2.98 (m, 3H), 2.80 (dd, J = 8.0, 4.7 Hz, 5H), 2.74 (s, 3H), 2.30 (dq, J = 13.1, 6.3, 5.3 Hz, 2H),; 545.5 [M + H]⁺ 0.93 223

N-(4- methoxy-2- ((2-methoxyethyl) (methyl)amino)- 5-((6-((R)-3- (6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.67 (s, 2H), 8.76 (d, J = 2.1 Hz, 1H), 8.48 (d, J = 8.7 Hz, 1H), 8.32 (d, J = 7.4 Hz, 2H), 7.93 (d, J = 8.7 Hz, 1H), 7.17 (s, 1H), 6.48 (s, 2H), 6.25 (d, J = 16.8 Hz, 1H), 5.82-5.71 (m, 2H), 4.32-4.24 (m, 2H), 4.04 (d, J = 8.7 Hz, 2H), 3.86 (s, 3H), 3.57 (s, 1H), 3.47 (s, 2H), 3.28 (s, 3H), 2.93 (s, 3H), 2.76 (s, 3H), 2.44-2.37 (m, 1H),; 520.5 [M + H]⁺ 1.23 224

N-(2- ((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)-4-methoxy- 5-((6-((R)-3- (6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.64 (s, 1H), 9.36 (d, J = 24.6 Hz, 1H), 8.75 (d, J = 2.2 Hz, 1H), 8.43 (d, J = 8.4 Hz, 1H), 8.26 (d, J = 2.4 Hz, 1H), 7.90 (d, J = 8.4 Hz, 1H), 7.16 (d, J = 47.7 Hz, 1H), 6.47 (d, J = 11.2 Hz, 1H), 6.19 (dd, J = 17.1,2.1 Hz, 1H), 5.78-5.66 (m, 2H), 4.60-4.45 (m, 2H), 4.29 (td, J = 7.6, 4.0 Hz, 1H), 4.04 (t, J = 7.8 Hz, 1H), 3.95 (dd, J = 7.8, 2.6 Hz, 1H), 3.86 (t, J = 6.3 Hz, 2H), 3.80 (d, J = 4.2 Hz, 3H), 3.57 (s, 2H), 2.96-2.92 (m, 1H), 2.79 (t, J = 6.1 Hz, 1H), 2.73 (s, 3H), 2.44- 2.37 (m, 1H), 1.85 (q, J = 9.8 Hz, 2H),; 530.4 [M + H]⁺ 1.08 225

N-(2-(4- cyclopentylpip- erazine-1-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.59-8.57 (s, 2H), 8.37 (s, 1H), 7.70 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.95 (s, 1H), 6.83 (s, 1H), 6.72 (s, 1H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.30-6.23 (m, 1H), 5.77-5.73 (m, 1H), 5.73-5.69 (m, 1H), 4.20- 4.05 (m, 2H), 3.82 (s, 3H), 2.94 (t, J = 5.0 Hz, 4H), 2.80-2.72 (m, 3H), 2.63-2.60 (m, 2H), 2.54 (s, 3H), 2.40-2.32 (m, 1H), 2.18 (d, J = 7.7 Hz, 1H), 1.97-1.89 (m, 2H), 1.78-1.71 (m, 2H), 1.65-1.58 (m, 2H), 1.50-1.42 (m, 2H),; 585.6 [M + H]⁺ 0.89 226

N-(2-(4- cyclopentylpip- erazine-1-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.47 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.1, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.72 (s, 1H), 6.40-6.31 (m, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.77-5.73 (m, 1H), 5.73-5.69 (m, 1H), 4.21-4.06 (m, 2H), 3.84 (s, 3H), 3.27- 3.15 (m, 4H), 3.05 (d, J = 11.5 Hz, 2H), 2.82- 2.62 (m, 6H), 2.48-2.42 (m, 3H), 2.37 (s, 3H), 2.29 (s, 3H), 2.27 (s, 6H),; 616.6 [M + H]⁺ 0.46 227

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.48 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.94 (s, 1H), 6.76 (s, 1H), 6.72 (s, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (m, 2H), 4.21-4.04 (m, 3H), 3.85 (s, 3H), 3.78 (s, 1H), 3.67 (dd, J = 8.0, 1.6 Hz, 1H), 3.20-3.13 (m, 1H), 3.03 (d, J = 11.7 Hz, 2H), 2.83-2.71 (m, 3H), 2.54 (m, 5H), 2.36 (m, 1H), 2.10-1.91 (m,4H), 1.83 (d, J = 9.8 Hz, 1H), 1.68 (m, 2H),; 613.6 [M + H]⁺ 0.75 228

N-(2-(4- ((1S,4S)-2-oxa- 5-azabicyclo[2.2. 1]heptane-5- yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.48 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.96 (s, 1H), 6.76 (s, 1H), 6.72 (s, 1H), 6.44-6.32 (m, 1H), 6.24 (dd, J = 17.0, 10.0 Hz, 1H), 5.81-5.68 (m, 2H), 4.20-4.07 (m, 3H), 3.85 (s, 3H), 3.78 (m, 1H), 3.67 (dd,J = 7.9, 1.7 Hz, 1H), 3.15 (d, J = 9.8 Hz, 1H), 3.03 (m, 2H), 2.76 (m, 3H), 2.63-2.48 (m, 5H), 2.35 (m, 1H), 2.08- 1.90 (m, 4H), 1.83 (d, J = 9.5 Hz, 1H), 1.68 (t, J = 11.1 Hz, 2H),; 613.6 [M + H]⁺ 0.81 229

N-(4-methoxy- 2-(4-((2- methoxyethyl) (methyl)amino)p iperidine-1-yl)- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.2 Hz, 1H), 8.46 (s, 1H), 8.36 (s, 1H), 7.70 (dd, J = 8.0, 2.3 Hz, 1H), 7.13 (d, J = 8.1 Hz, 1H), 6.93 (s, 1H), 6.73 (d, J = 13.1 Hz, 2H), 6.43-6.19 (m, 2H), 5.79- 5.66 (m, 2H), 4.22-4.05 (m, 2H), 3.84 (s, 3H), 3.53 (t, J = 5.7 Hz, 2H), 3.39 (s, 3H), 3.06 (d, J = 11.0 Hz, 2H), 2.83-2.66 (m, 5H), 2.54 (s, 3H), 2.41 (s, 3H), 2.00 (m, 2H), 1.92-1.79 (m, 2H), 1.70 (m, 2H),; 603.5 [M + H]⁺ 0.83 230

N-(2-(4-(4- isopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.41 (s, 1H), 8.36 (s, 1H), 7.71 (dd, J = 8.1,2.4 Hz, 1H), 7.13 (d, J = 8.1 Hz, 1H), 6.97 (s, 1H), 6.73 (d, J = 10.5 Hz, 2H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.28-6.16 (m, 1H), 5.76-5.73 (m, 1H), 5.71 (m 1H), 4.16 (tt, J = 8.7, 4.3 Hz, 1H), 4.12-4.06 (m, 1H), 3.84 (s, 3H), 3.06 (dd, J = 9.6, 4.8 Hz, 4H), 2.94 (s, 8H), 2.82-2.68 (m, 4H), 2.46 (d, J = 4.5 Hz, 1H), 2.36 (dtd, J = 12.3, 8.0, 4.4 Hz, 2H), 2.12-2.05 (m, 2H), 1.69 (d, J = 11.9 Hz, 2H), 1.26 (d, J = 6.2 Hz, 6H),; 642.6 [M + H]⁺ 0.80 231

N-(2-(4-((R)-3- (dimethylamino)- pyrolidine-1- yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.49 (s, 1H), 8.36 (s, 1H), 7.73-7.69 (m, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.72 (s, 1H), 6.34 (dd, J = 16.7, 1.4 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.72 (m, 2H), 4.19-4.07 (m, 2H), 3.84 (s, 3H), 3.29-3.14 (m, 5H), 3.12-2.99 (m, 3H), 2.94 (m, 1H), 2.83-2.68 (m, 5H), 2.54 (s, 3H), 2.47 (t, J = 6.3 Hz, 2H), 2.35 (m, 2H), 2.30 (s, 6H),; 628.6 [M + H]⁺ 0.36 232

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine-1- yl)-4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.41 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.73-7.68 (m, 1H), 7.13 (d, J = 8.0 Hz, 1H), 7.01 (s, 1H), 6.73 (d, J = 13.9 Hz, 2H), 6.43-6.34 (m, 1H), 6.28- 6.11 (m, 1H), 5.77-5.73 (m, 1H), 5.73-5.69 (m, 1H), 4.15 (dd, J = 8.0, 4.5 Hz, 1H), 4.10 (d, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.67 (m, 2H), 3.52 (t, J = 5.0 Hz, 2H), 3.07 (m, 2H), 2.81- 2.69 (m, 4H), 2.62 (dt, J = 14.2, 5.1 Hz, 4H), 2.44-2.32 (m, 4H), 2.11 (s, 3H), 2.04 (m, 2H), 1.68 (m, 2H),; 642.6 [M + H]⁺ 0.76 233

N-(2-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]heptane-5-yl)- 4-methoxy-5- ((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.67 (s, 1H), 8.57 (d, J = 2.3 Hz, 1H), 8.36 (s, 1H), 7.97 (s, 1H), 7.70 (dd, J = 8.1, 2.4 Hz, 1H), 7.13 (d, J = 8.0 Hz, 1H), 6.88 (s, 1H), 6.67 (d, J = 26.7 Hz, 2H), 6.39 (d, J = 17.2 Hz, 1H), 6.28 (dd, J = 16.9, 10.0 Hz, 1H), 5.75 (d, J = 10.0 Hz, 1H), 5.70 (dd, J = 8.7, 4.4 Hz, 1H), 4.65 (s, 1H), 4.15 (td, J = 8.0, 4.5 Hz, 1H), 4.05 (d, J = 7.7 Hz, 2H), 3.86 (s, 4H), 3.75 (d, J = 7.8 Hz, 1H), 3.42 (d, J = 10.2 Hz, 1H), 3.24 (d, J = 10.1 Hz, 1H), 2.76 (dtd, J = 12.5, 8.2, 4.5 Hz, 1H), 2.54 (s, 3H), 2.36 (dtd, J = 12.3, 7.9, 4,4 Hz, 1H), 2.08 (d, J = 9.9 Hz, 1H), 1.99 (d, J = 9.8 Hz, 1H),; 530.5 [M + H]⁺ 0.87 234

N-(4-methoxy- 2-(4-((1R,4R)- 5-methyl-2,5- diazabicyclo[2.2.1]heptane-2- yl)piperidine-1- yl)-5-((6-((R)-3- (6-methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.57 (d, J = 2.4 Hz, 1H), 8.35 (s, 1H), 7.72 (dd, J = 8.1,2.4 Hz, 1H), 7.15 (d, J = 8.1 Hz, 1H), 7.04 (s, 1H), 6.76 (s, 1H), 6.69 (s, 1H), 6.54 (s, 2H), 6.34 (s, 1H), 5.77-5.68 (m, 2H), 5.61 (s, 2H), 4.17 (td, J = 8.0, 4.3 Hz, 1H), 4.09 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.35 (q, J = 6.0 Hz, 5H), 3.19 (dd, J = 7.2, 5.6 Hz, 4H), 3.13 (t, J = 6.9 Hz, 5H), 2.55 (s, 3H), 2.01 (p, J = 6.6 Hz, 6H),; 626.6 [M + H]⁺ 0.74 235

N-(4-methoxy- 5-((6-((R)-3-(6- methylpyridine- 3-yl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4- morpholino- [1,4-bipiperidine]-1 yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.59 (s, 1H), 8,47 (d, J = 2.3 Hz, 1H), 8.15 (d, J = 8.6 Hz, 2H), 7.67 (dd, J = 8.1, 2.4 Hz, 1H), 7.23 (d, J = 8.0 Hz, 1H), 6.81 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.33 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.72 (d, J = 10.3 Hz, 1H), 5.54 (dd, J = 8.6, 4.9 Hz, 1H), 4.15 (td, J = 7.9, 4.1 Hz, 1H), 3.86 (q, J = 7.9 Hz, 1H), 3.79 (s, 2H), 3.56 (t, J = 4.6 Hz, 3H), 3.33 (s, 10H), 3.05 (d, J = 10.4 Hz, 2H), 3.00-2.91 (m, 2H), 2.74 (dt, J = 8.3, 4.2 Hz, 1H), 2,70- 2.61 (m, 2H), 2.45 (s, 3H), 1.86-1.64 (m, 6H), 1.36 (d, J = 12.2 Hz, 2H), 1.24 (s, 1H),; 684.6 [M + H]⁺ 0.45 236

N-(5-((6-((R)- 3-(3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4-ethylpiperazine- 1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.12-7.01 (m, 2H), 6.92 (s, 1H), 6.84 (tt, J = 2.5, 9.1 Hz, 1H), 6.55 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.36 (dd, J = 1.5, 17.0 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.57 (dd, J = 4.7, 8.7 Hz, 1H), 4.19-4.11 (m, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.22- 3.12 (m, 2H), 3.08-2.87 (m, 9H), 2.87-2.74 (m, 4H), 2.66-2.58 (m, 1H), 2.38-2.29 (m, 1H), 2.10-2.02 (m, 2H), 1.88-1.75 (m, 2H), 1.27 (t, J = 7.3 Hz, 3H); 649.3 [M + H]⁺ 1.15 237

N-(5-((6-((R)- 3-(3.5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((R)-3- (dimethylamino)- pyrolidine-1- yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.10-7.02 (m, 2H), 6.92 (s, 1H), 6.90-6.80 (m, 1H), 6.61-6.51 (m, 1H), 6.47 (s, 1H), 6.42-6.31 (m, 1H), 5.81 (d, J = 10.5 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.20- 4.12 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.26-3.19 (m, 1H), 3.19-3.10 (m, 3H), 3.06-2.97 (m, 2H), 2.92-2.75 (m, 4H), 2.63- 2.53 (m, 7H), 2.38-2.20 (m, 2H), 2.17-2.09 (m, 2H), 1.87-1.75 (m, 2H); 649.3 [M + H]⁺ 1.09 238

N-(2-(4- ((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.33 (s, 1H), 8.18 (d, J = 1.0 Hz, 1H), 7.10-7.03 (m, 2H), 6.93 (s, 1H), 6.87-6.81 (m, 1H), 6.58 (dd, J = 17.0, 10.3 Hz, 1H), 6.47 (d, J = 1.0 Hz, 1H), 6.36 (dd, J. 17.0, 1.6 Hz, 1H), 5.80 (dd, J = 10.3, 1.6 Hz, 1H), 5.57 (dd, J = 8.6, 4.8 Hz, 1H), 4.47 (t, J = 2.0 Hz, 1H), 4.19-4.10 (m, 2H), 3.98 (d, J = 8.0 Hz, 1H), 3.88 (s, 4H), 3.67 (dd, J = 8.3, 1.7 Hz, 1H), 3.15-3.08 (m, 3H), 2.88-2.78 (m, 3H), 2.70-2.59 (m, 2H), 2.36-2.30 (m, 1H), 2.11-1.93 (m, 3H), 1.89-1.84 (m,1H), 1.73 (d, J = 12.0 Hz, 2H); 634.3 [M + H]⁺ 1.2 239

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide H NMR (400 MHz, Methanol-d₄) δ 8.33 (s, 1H), 8.18 (d, J = 1.0 Hz, 1H), 7.09-7.03 (m, 2H), 6.92 (s, 1H), 6.87-6.81 (m, 1H), 6.58 (dd, J = 17.0, 10.3 Hz, 1H), 6.47 (d, J = 1.0 Hz, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.80 (dd, J = 10.3, 1.6 Hz, 1H), 5.57 (dd, J = 8.7, 4.7 Hz, 1H), 4.47 (t, J = 2.0 Hz, 1H), 4.17-4.10 (m, 2H), 3.97 (q, J = 8.0 Hz, 1H), 3.90 (s, 1H), 3.88 (s, 3H), 3.67 (dd, J = 8.3, 1.7 Hz, 1H), 3.13- 3.07 (m, 3H), 2.85-2.76 (m, 3H), 2.70-2.58 (m, 2H), 2.37-2.31 (m, 1H), 2.06 (d, J = 13.6 Hz, 1H), 2.02 (d, J = 3.4 Hz, 1H), 1.94 (dd, J = 10.2,2.1 Hz, 1H), 1.86 (d, J = 10.1 Hz, 1H), 1.77-1.67 (m, 2H); 634.3 [M + H]⁺ 1.21 240

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-ethylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-cfe)611.34(s, 1H), 10.19 (s, 1H), 9.31 (s, 1H), 8.32 (s, 1H), 7.16 (tt, J = 9.4, 2.5 Hz, 1H), 7.10 (h, J = 4.4 Hz, 2H), 6.88 (q, J = 9.6, 9.0 Hz, 2H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.74 (dd, J = 10.1, 2.0 Hz, 1H), 5.56 (dd, J = 8.6, 5.4 Hz, 1H), 4.04 (q, J = 7.8 Hz, 3H), 3.82 (s, 3H), 3.50 (d, J = 11.2 Hz, 2H), 3.41 (d, J = 10.2 Hz, 2H), 3.31-3.19 (m, 4H), 3.20-3.10 (m, 3H), 2.92 (qd, J = 7.8, 3.5 Hz, 1H), 2.32 (dtd, J = 12.8, 7.7, 5.2 Hz, 1H), 1.32 (t, J = 7.2 Hz, 3H), 1.23 (d, J = 3.4 Hz, 1H), 0.88-0.78 (m, 1H),; 566.3 [M + H]⁺ 1.16 241

N-(5-((6- ((R)-3-(3,5- difluorophenyl)- isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)- 2-(4-(dimethylamino)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.48 (s, 1H), 9.49-9.24 (m, 1H), 8.36 (s, 1H), 7.87 (s, 1H), 7.17 (tt, J = 9.3, 2.4 Hz, 1H), 7.10 (h, J = 4.5 Hz, 3H), 6.96 (s, 1H), 6.78 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 16.9, 1.9 Hz, 2H), 6.14 (s, 1H), 5.79-5.71 (m, 1H), 5.56 (dd, J = 8.6, 5.4 Hz, 1H), 4.06 (q, J = 7.7 Hz, 1H), 3.81 (s, 4H), 3.25 (d, J = 12.2 Hz, 2H), 3.00-2.80 (m, 4H), 2.73 (d, J = 4.9 Hz, 7H), 2.33 (dtd, J = 12.7, 7.6, 5.3 Hz, 1H), 2.20- 2.00 (m, 5H), 1.23 (d, J = 3.4 Hz, 2H), 0.84 (td, J = 7.6, 7.1,3.1 Hz, 1H),; 580.4 [M + H]⁺ 1.13 242

N-(5-((6- ((R)-3-(3,5- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-((R)-3- (dimethylami no)pyrolidine -1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.63 (s, 1H), 8.34 (s, 1H), 8.20 (s, 1H), 6.93 (s, 1H), 6.73 (s, 1H), 6.71-6.63 (m, 2H), 6.41-6.25 (m, 2H), 5.72 (dd, J = 9.5, 2.2 Hz, 1H), 5.66 (dd, J = 8.8, 4.6 Hz, 1H), 4.04 (q, J = 8.2 Hz, 1H), 3.83 (s, 3H), 3.22-3.04 (m, 4H), 2.93- 2.68 (m, 2H), 2.29 (s, 8H), 2.16 (ddd, J = 16.5, 9.4, 3.3 Hz, 3H),; 566.3 [M + H]⁺ 1.11 243

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2 .2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.60 (s, 1H), 8.17 (d, J = 4.7 Hz, 2H), 7.40 (td, J = 8.0, 6.1 Hz, 1H), 7.26 (d, J = 7.7 Hz, 1H), 7.20 (dt, J = 10.3, 2.2 Hz, 1H), 7.08 (td, J = 8.6, 2.7 Hz, 1H), 6.84 (s, 1H), 6.68-6.61 (m, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 1.9 Hz, 1H), 5.72, (dd, J = 10.0, 2.0 Hz, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.34 (d, J = 2.6 Hz, 1H), 4.12 (dd, J = 7.9, 3.9 Hz, 1H), 3.90- 3.83 (m, 2H), 3.80 (s, 3H), 3.70 (s, 1H), 3.54- 3.50 (m, 1H), 3.05-2.94 (m, 3H), 2.78- 2.67 (m, 3H), 2.47 (d, J = 4.6 Hz, 1H), 2.35 (d, J = 9.7 Hz, 1H), 2.29-2.19 (m,H1), 1.83 (s, 2H), 1.69-1.57 (m, 4H); 616.3 [M + H]⁺ 1.13 244

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[2 .2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 7.89 (s, 1H), 7.39 (dd, J = 8.0, 5.8 Hz, 1H), 7.22-7.17 (m, 1H), 7.12 (dd, J = 9.8, 2.0 Hz, 1H), 7.05 (d, J = 2.6 Hz, 1H), 6.97 (d, J = 3.6 Hz, 1H), 6.64 (ddd, J = 17.0, 10.3,2.1 Hz, 1H), 6.44-6.37 (m, 1H), 6.01 (s, 1H), 5.85 (dd, J = 10.3, 1.6 Hz, 1H), 5.52 (d, J = 6.6 Hz, 1H), 4.82-4.67 (m, 3H), 4.44 (td, J = 7.6, 4.3 Hz, 1H), 4.34 (d, J = 10.7 Hz, 1H), 4.20 (td, J = 8.4, 6.7 Hz, 2H), 3.92-3.89 (m, 1H), 3.87 (s, 3H), 3.66 (d, J = 15.6 Hz, 2H), 3.10-3.00 (m, 1H), 2.91 (dd, J = 23.9, 11.8 Hz, 2H), 2.53-2.43 (m, 2H), 2.31-2.05 (m, 6H); 616.3 [M + H]⁺ 1.13 245

N-(2-(4- (dimethylamino)piperidine- 1-yl)-5- ((6-((R)-3- (3- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (s, 1H), 8.63 (s, 1H), 8.18 (d, J = 4.9 Hz, 2H), 7.40 (td, J = 7.9, 6.1 Hz, 1H), 7.26 (d, J = 7.7 Hz, 1H), 7.20 (dd, J = 10.4, 2.0 Hz, 1H), 7.09 (td, J = 8.6, 2.6 Hz, 1H), 6.84 (s, 1H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.37 (s, 1H), 6.23 (dd, J = 17.1,2.0 Hz, 1H), 5.76-5.68 (m, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.14 (td, J = 7.8, 3.8 Hz, 1H), 3.87-3.83 (m, 1H), 3.81 (s, 3H), 3.17 (s, 3H), 3.12 (d, J = 11.7 Hz, 2H), 3.01-2.90 (m, 1H), 2.78- 2.71 (m, 2H), 2.60 (s, 6H), 2.25 (ddt, J = 11.8, 7.8, 4.0 Hz, 1H), 2.03 (d, J = 11.7 Hz, 2H); 562.3 [M + H]⁺ 1.14 246

N-(2-(4- ethylpiper- azine-1-yl)-5- ((6-((R)-3- (3-fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.19 (d, J = 2.8 Hz, 1H), 8.00 (s, 1H), 7.44- 7.39 (m, 1H), 7.22-7.19 (m, 1H), 7.14- 6.97 (m, 3H), 6.72-6.66 (m, 1H), 6.42 (dd, J = 16.9, 1.6 Hz, 1H), 6.00 (s, 1H), 5.85 (dd, J = 10.3, 1.6 Hz, 1H), 5.53 (s, 1H), 4.43 (dt, J = 7.5, 3.9 Hz, 1H), 4.23- 4.17 (m, 1H), 3.96 (t, J = 5.7 Hz, 1H), 3.88 (d, J = 3.2 Hz, 3H), 3.70 (d, J = 11.8 Hz, 2H), 3.47-3.35 (m, 4H), 3.29- 3.22 (m, 2H), 3.10-3.00 (m, 2H), 2.48 (dddd, J = 12.6, 8.4, 7.1,5.8 Hz, 1H), 1.46 (t, J = 7.3 Hz, 3H); 548.3 [M + H]⁺ 1.14 247

N-(2-((R)- 3-(dimethylamino)pyrolidine- 1-yl)-5- ((6-((R)-3- (3-fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.40 (s, 1H), 8.50 (s, 1H), 8.14 (d, J = 1.0 Hz, 1H), 7.46 (s, 1H), 7.38 (dd, J = 8.0, 6.1 Hz, 1H), 7.26 (d, J = 7.8 Hz, 1H), 7.20 (dt, J = 10.3, 2.1 Hz, 1H), 7.09 (dd, J = 8.4, 2.4 Hz, 1H), 6.58-6.50 (m, 2H), 6.26-6.16 (m, 2H), 5.60 (dd, J = 10.1, 2.1 Hz, 1H), 5.57-5.50 (m, 1H), 4.12 (q, J = 4.0 Hz, 1H), 3.82 (s, 1H), 3.80 (s, 3H), 3.27 (dd, J = 11.8, 5.7 Hz, 4H), 2.92 (d, J = 7.5 Hz, 1H), 2.79-2.71 (m, 1H), 2.29 (s, 6H), 2.26-2.21 (m, 1H), 2.16- 2.06 (m, 1H), 1.87-1.76 (m, 1H); 548.3 [M + H]⁺ 1.09 248

N-(2-(4-(4- ethylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 3.4 Hz, 2H), 7.40 (td, J = 7.9, 6.1 Hz, 1H), 7.29- 7.18 (m, 2H), 7.08 (td, J = 8.6, 2.7 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.3 Hz, 1H), 6.34 (s, 1H), 6.23-6.15 (m, 1H), 5.77-5.69 (m, 1H), 5.55 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (d, J = 4.0 Hz, 1H), 3.83 (d, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.05 (d, J = 11.1 Hz, 2H), 2.80- 2.72 (m, 1H), 2.66 (ddd, J = 12.2, 9.4, 3.6 Hz, 2H), 2.54 (s, 3H), 2.37 (s, 2H), 2.34-2.19 (m,6H), 1.83 (s, 3H), 1.70 (dd, J = 11.7, 3.7 Hz, 2H), 0.99 (t, J = 7.2 Hz, 3H); 631.3 [M + H]⁺ 1.08 249

N-(5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (3-ethyl-3,6- diazabicyclo[3.1 .1]heptane-6- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.19 (s, 1H), 7.10-7.04 (m, 2H), 6.94 (s, 1H), 6.84 (tt, J = 2.4, 9.1 Hz, 1H), 6.60- 6.43 (m, 2H), 6.42-6.29 (m, 1H), 5.82 (d, J = 10.2 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.36-4.28 (m, 2H), 4.18-4.12 (m, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.42-3.34 (m, 2H), 3.22-3.13 (m, 4H), 2.98-2.79 (m, 7H), 2.40-2.26 (m, 2H), 2.23-2.02 (m, 3H), 1.71 (td, J = 3.7, 11.7 Hz, 1H), 1.23 (t, J = 7.2 Hz, 3H); 661.3 [M + H]⁺ 1.13 250

N-(5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino) pyrolidine-1- yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.10-7.02 (m, 2H), 6.92 (s, 1H), 6.90-6.80 (m, 1H), 6.61-6.51 (m, 1H), 6.47 (s, 1H), 6.42-6.31 (m, 1H), 5.81 (d, J = 10.5 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.20-4.12 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.26-3.19 (m, 1H), 3.19- 3.10 (m, 3H), 3.06-2.97 (m, 2H), 2.92-2.75 (m, 4H), 2.63-2.53 (m, 7H), 2.38-2.20 (m, 2H), 2.17-2.09 (m, 2H), 1.87-1.75 (m, 2H); 649.3 [M + H]⁺ 1.10 251

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine- 1-yl)-5-((6-((R)- 3-(3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.11-7.00 (m, 2H), 6.92 (s, 1H), 6.89-6.77 (m, 1H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.36 (d, J = 16.9 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.56 (dd, J = 4.8, 8.7 Hz, 1H), 4.18-4.12 (m, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.71- 3.57 (m, 4H), 3.20-3.11 (m, 2H), 2.88-2.73 (m, 5H), 2.73-2.65 (m, 2H), 2.59-2.47 (m, 1H), 2.39-2.28 (m, 1H), 2.13 (s, 3H), 2.05 (d, J = 12.2 Hz, 2H), 1.86-1.72 (m, 2H); 663.3 [M + H]⁺ 1.18 252

N-(5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (6-ethyl-3,6- diazabicyclo[3.1.1]heptane-3- yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.13-7.00 (m, 2H), 6.94 (s, 1H), 6.91-6.78 (m, 1H), 6.54 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 5.81 (d, J = 10.2 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.16 (td, J = 4.1, 7.9 Hz, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.53-3.39 (m, 3H), 3.30-3.23 (m, 3H), 3.21-3.12 (m, 3H), 2.91-2.70 (m, 5H), 2.41- 2.31 (m, 2H), 2.15-2.03 (m, 2H), 1.93- 1.77 (m, 3H), 1.35-1.26 (m, 3H); 661.3 [M + H]⁺ 1.20 253

N-(5-((6-((R)-3- (3,5-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-4- (dimethylamino)- 1,4′-bipiperidine-1 yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.12-7.01 (m, 2H), 6.92 (s, 1H), 6.88-6.79 (m, 1H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.57 (dd, J = 4.8, 8.7 Hz, 1H), 4.16 (td, J = 4.1, 7.9 Hz, 1H), 3.97 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.23-3.13 (m, 2H), 3.05-2.94 (m, 1H), 2.91-2.75 (m, 4H), 2.73 (s, 7H), 2.61-2.50 (m, 2H), 2.40-2.29 (m, 1H), 2.15 (dd, J = 6.3, 9.4 Hz, 2H), 2.07 (d, J = 11.9 Hz, 2H), 1.92-1.70 (m, 5H); 663.4 [M + H]⁺ 1.08 254

N-(5-((6-((R)-3-(4- chlorophenyl)- isoxazoli- dine-2-yl)pyri- midine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 647.3 [M + H]⁺ 1.18 255

N-(5-((6-((R)-3-(4- chlorophenyl)- isoxazoli- dine-2-yl)pyri- midine-4- yl)amino)-2-(4- ethylpipera- zine-1-yl)-4- methoxyphenyl)acrylamide 564.2 [M + H]⁺ 1.23 256

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1] heptane-5-yl)- piperidine-1-yl)- 5-((6-((R)-3-(4- chloro3- fluorophenyl)- isoxazoli- dine-2-yl)pyri- midine-4- yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d) δ 9.85 (s, 1H), 9.24 (d, J = 32.0 Hz, 1H), 8.30 (d, J = 6.7 Hz, 1H), 7.88 (s, 1H), 7.59 (t, J = 8.0 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.25 (d, J = 8.4 Hz, 1H), 6.90 (s, 1H), 6.59 (s, 1H), 6.28-6.20 (m, 1H), 6.13 (s, 1H), 5.76 (d, J = 10.4 Hz, 1H), 5.54 (dd, J = 8.6, 5.4 Hz, 1H), 4.72-4.55 (m, 3H), 4.28 (s, 1H), 4.20 (d, J = 10.2 Hz, 1H), 3.82 (d, J = 2.0 Hz, 3H), 3.71 (d, J = 9.7 Hz, 1H), 3.47 (t, J = 9.4 Hz, 2H), 3.19 (d, J = 20.5 Hz, 3H), 2.87 (d, J = 35.1 Hz, 3H), 2.31 (d, J = 13.0 Hz, 2H), 2.12 (d, J = 38.0 Hz, 5H); 650.3 [M + H] 1.27 257

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]- heptane-5-yl)- piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-4- fluorophenyl)- isoxazoli- dine-2-yl)pyri- midine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.10 (s, 1H), 9.29 (d, J = 33.0 Hz, 1H), 8.33 (s, 1H), 7.86 (d, J = 12.2 Hz, 1H), 7.58 (dd, J = 7.1,2.1 Hz, 1H), 7.45-7.36 (m, 2H), 6.92 (d, J = 9.0 Hz, 1H), 6.71-6.53 (m, 1H), 6.29-6.23 (m, 1H), 6.12(s, 1H), 5.76 (d, J = 10.4 Hz, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.73-4.56 (m, 3H), 4.46 (d, J = 9.2 Hz, 1H), 4.31 (d, J = 4.3 Hz, 1H), 4.22 (s, 1H), 4.06 (s, 2H), 3.82 (d, J = 2.3 Hz, 3H), 3.72-3.68 (m, 1H), 3.50- 3.41 (m, 2H), 3.24 (d, J = 11.4 Hz, 2H), 2.97-2.78 (m, 3H), 2.33 (t, J = 6.6 Hz, 2H), 2.11-2.03 (m, 3H); 650.3 [M + H]⁺ 1.27 258

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]- heptane-5-yl)- piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-2- fluorophenyl)- isoxazoli- dine-2-yl)- pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.01 (s, 1H), 9.27 (d, J = 33.1 Hz, 1H), 8.31 (s, 1H), 7.88 (d, J = 12.1 Hz, 1H), 7.57-7.52 (m, 1H), 7.36 (t, J = 7.1 Hz, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.92 (d, J = 8.2 Hz, 1H), 6.63 (dt, J = 17.7, 8.8 Hz, 1H), 6.27- 6.14 (m, 2H), 5.77-5.68 (m, 2H), 4.72-4.64 (m, 2H), 4.57 (s, 1H), 4.44 (d, J = 9.2 Hz, 1H), 4.32 (d, J = 4.1 Hz, 1H), 4.19(S, 1H), 3.82 (d, J = 2.1 Hz, 3H), 3.71 (d, J = 3.2 Hz, 1H), 3.46 (t, J = 9.6 Hz, 3H), 3.23 (d, J = 11.2 Hz, 2H), 3.00-2.94 (m, 1H), 2.84 (t, J = 11.2 Hz, 2H), 2.31 (d, J = 10.6 Hz, 3H), 2.12- 2.05 (m, 3H); 650.3 [M + H]⁺ 1.29 259

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.2]- heptane-5-yl)- piperidine-1- yl)-5-((6-((R)- 3-(2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.23 (s, 1H), 9.33 (d, J = 35.9 Hz, 1H), 8.34 (s, 1H), 7.85 (d, J = 11.6 Hz, 1H), 7.33 (td, J = 9.3, 4.4 Hz, 1H), 7.19 (dtd, J = 18.1, 9.1, 8.7, 3.7 Hz, 2H), 6.95 (d, J = 10.9 Hz, 1H), 6.64 (ddd, J = 21.2, 16.9, 10.2 Hz, 1H), 6.29-6.15 (m, 2H), 5.77 (dd, J = 10.0, 1.9 Hz, 1H), 5.66 (dd, J = 8.6, 5.6 Hz, 1H), 4.73- 4.64 (m, 2H), 4.57 (s, 1H), 4.49 (s, 1H), 4.33 (d, J = 3.7 Hz, 1H), 3.83 (d, J = 2.2 Hz, 3H), 3.70 (td, J = 5.7, 3.0 Hz, 1H), 3.51-3.42 (m, 2H), 3.25 (d, J = 11.7Hz, 2H), 3.15 (dd, J = 11.4, 3.6 Hz, 1H), 2.99-2.80 (m, 3H), 2.37- 2.27 (m, 2H), 2.08 (d, J = 10.8 Hz, 3H); 634.3 [M + H]⁺ 1.23 260

N-(5-((6-((R)-3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy- 2-(4-((1S,4S)-5- methyl-2,5- diazabicyclo[2.2.1]- heptane-2-yl)- piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.06 (s, 1H), 9.29 (s, 1H), 8.33 (s, 1H), 7.85 (s, 1H), 7.19-7.14 (m, 1H), 7.12- 7.08 (m, 2H), 6.93 (d, J = 23.4 Hz, 1H), 6.58 (d, J = 21.7 Hz, 1H), 6.25 (dd, J = 17.0, 1.8 Hz, 1H), 6.14(s, 1H), 5.80-5.70 (m, 1H), 5.55 (dd, J = 8.6, 5.4 Hz, 1H), 4.70 (s, 2H), 4.48 (s, 1H), 4.29 (dd, J = 7.6, 4.3 Hz, 2H), 4.05 (s, 2H), 3.82 (s, 3H), 3.69 (s, 2H), 3.25 (s, 3H), 2.98-2.92 (m, 2H), 2.88 (d, J = 4.1 Hz, 3H), 2.75 (d, J = 9.3 Hz, 2H), 2.33 (dq, J = 10.4, 3.9, 2.5 Hz, 2H), 2.08 (d, J = 35.2 Hz, 3H); 647.3 [M + H]⁺ 1.13 261

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine- 1-yl)-4- methoxy-5-((6-(3- methyl-3- phenyliso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- phenyl)acrylamide 627.6 [M + H]⁺ 1.06 262

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)- isoxazol- idine-2-yl)- pyrimidine- 4-yl)amino)-2- (4-(4- ethylpiperazine-1- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide 665.5 [M + H]⁺ 1.27 263

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)- isoxazol- idine-2-yl)- pyrimidine- 4-yl)amino)-2- (4-(4- ethylpiperazine- 1-yl)piperi- dine-1-yl)-4- methoxy- phenyl)acrylamide 665.5 [M + H]⁺ 1.26 264

N-(5-((6-((R)-3-(3,5- difluorophenyl)- isoxazol idine-2-yl)pyri- midine-4- yl)amino)-2-(4- ((1S,4S)-5-ethyl-2,5-diazabicyclo- [2.2.1]hep- tane-2-yl)piper- idine-1-yl)-4- methoxy- phenyl)acrylamide 661.3 [M + H]⁺ 1.17 265

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazol- idine-2-yl)pyr- imidine-4- yl)amino)-2- (4-(4- isopropylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.12- 7.02 (m, 2H), 6.92 (s, 1H), 6.90- 6.79 (m, 1H), 6.55 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.37 (dd, J = 1.5, 17.0 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.57 (dd, J = 4.7, 8.7 Hz, 1H), 4.16 (td, J = 4.1,7.9 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.30-3.23 (m, 2H), 3.19- 3.10 (m, 5H), 2.97 (s, 4H), 2.88- 2.75 (m, 3H), 2.68-2.56 (m, 1H), 2.40-2.28 (m, 1H), 2.10-2.01 (m, 2H), 1.89-1.74 (m, 2H), 1.33- 1.29 (m,6H); 663.4 [M + H]⁺ 1.18 266

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazol idine-2-yl)pyri- midine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)pip- eridine-1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.11- 7.01 (m, 2H), 6.92 (s, 1H), 6.84 (tt, J = 2.5, 9.1 Hz, 1H), 6.57 (dd, J = 10.3, 17.0 Hz, 1H), 6.46 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.56 (dd, J = 4.8, 8.7 Hz, 1H), 4.16(td, J = 4.1, 7.9 Hz, 1H), 3.97 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.77 (dt, J = 6.5, 12.4 Hz, 2H), 3.22-3.14 (m, 2H), 3.14- 3.07 (m, 2H), 2.87-2.75 (m, 3H), 2.66-2.56 (m, 1H), 2.38-2.28 (m, 1H), 2.14-2.09 (m, 2H), 1.87- 1.75 (m, 2H), 1.25-1.18 (m,6H); 650.3 [M + H]⁺ 1.31 267

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine-2-yl)pyrimidine-4- yl)amino)-2-(4- ((1R,4R)-5- ethyl-2,5- diazabicyclo- [2.2.1]hep- tane-2-yl)piper- idine-1- yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl3) δ 8.84 (s, 1H), 8.48 (s, 1H), 8.35 (s, 1H), 7.06 (s, 1H), 7.03-6.98 (m, 2H), 6.75 (s, 1H), 6.72-6.65 (m, 2H), 6.38-6.22 (m, 2H), 5.73 (dd, J = 9.8, 1.5 Hz, 1H), 5.66 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.74 (d, J = 18.2 Hz, 2H), 3.26-3.20 (m, 1H), 3.10- 3.06 (m, 1H), 3.04-2.99 (m, 2H), 2.96-2.87 (m, 4H), 2.83-2.73 (m, 7H), 2.67-2.62 (m, 1H), 2.38- 2.29 (m, 1H), 1.78-1.66 (m, 2H), 1.21 (t, J = 7.2 Hz, 3H); 661.6 [M + H]⁺ 1.2 268

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo- [2.2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6-((R)- 3-(3,4- dichloro-2- fluorophenyl)- isoxazoli- dine-2-yl)pyri- midine-4- yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.50 (t, J = 8.0 Hz, 1H), 7.38 (d,J = 8.6 Hz, 1H), 6.93 (s, 1H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.49 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 5.87-5.70 (m, 2H), 4.23-4.14 (m, 3H), 3.99 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.77 (d, J = 9.0 Hz, 1H), 3.31-3.25 (m, 2H), 3.20-3.12 (m, 2H), 3.01-2.79 (m, 5H), 2.34-2.22 (m, 1H), 2.22- 2.13 (m, 1H), 2.13-2.02 (m, 3H), 1.87-1.73 (m, 2H); 684.2 [M + H]⁺ 1.51 269

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]- heptane-5- yl)piperidine-1-yl)- 4-methoxy-5-((6- ((S)-3-methyl-3- phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-A) δ 8.26 (s, 1H), 8.12 (s, 1H), 7.48 (d, J = 8.0 Hz, 2H), 7.33 (t, J = 7.6 Hz, 2H), 7.25 (t, J = 7.3 Hz, 1H), 6.93 (s, 1H), 6.55 (dd, J = 10.3, 17.0 Hz, 1H), 6.39- 6.30 (m, 2H), 5.80 (d, J = 10.3 Hz, 1H), 4.23-4.19 (m, 1H), 4.19-4.14 (m, 1H), 3.98 (td, J = 5.0, 9.0 Hz, 1H), 3.89 (s, 3H), 3.79-3.73 (m, 1H), 3.73- 3.63 (m, 1H), 3.31-3.25 (m, 2H), 3.19-3.13 (m, 2H), 3.02-2.90 (m, 2H), 2.90-2.77 (m, 2H), 2.73-2.64 (m, 1H), 2.56-2.46 (m, 1H), 2.21- 2.10 (m, 1H), 2.12-2.01 (m, 3H), 1.85- 1.75 (m, 2H), 1.62 (s, 3H); 612.3 [M + H]⁺ 1.27 270

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1] heptane-5- yl)piperidine-1-yl)- 4-methoxy-5-((6- ((R)-3-methyl-3- phenylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₆) δ 8.27 (s, 1H), 8.12 (s, 1H), 7.48 (d, J = 7.6 Hz, 2H), 7.33 (t, J = 7.6 Hz, 2H), 7.25 (t, J = 7.3 Hz, 1H), 6.93 (s, 1H), 6.55 (dd, J = 10.2, 17.0 Hz, 1H), 6.40- 6.28 (m, 2H), 5.79 (d, J = 10.3 Hz, 1H), 4.29-4.22 (m, 1H), 4.21-4.12 (m, 1H), 4.03-3.92 (m, 1H), 3.89 (s, 3H), 3.81-3.74 (m, 1H), 3.74-3.62 (m, 1H), 3.32-3.27 (m, 2H), 3.22- 3.11 (m, 2H), 3.06-2.94 (m, 2H), 2.91- 2.78 (m, 2H), 2.73-2.63 (m, 1H), 2.58-2.46 (m, 1H), 2.24-2.13 (m, 1H), 2.13-2.02 (m, 3H), 1.88-1.75 (m, 2H), 1.62 (s, 3H),; 612.3 [M + H]⁺ 1.26 271

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)-3- morpholinopyroli- dine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.91 (d, J = 9.5 Hz, 1H), 10.22 (s, 1H), 9.70 (s, 1H), 7.56 (s, 1H), 7.18 (tt, J = 9.3, 2.4 Hz, 1H), 7.12-7.06 (m, 2H), 6.89 (dd, J = 17.0, 10.2 Hz, 1H), 6.71 (s, 1H), 6.22 (dd, J = 17.0, 2.1 Hz, 1H), 6.05 (s, 1H), 5.71 (dd, J = 10.1,2.1 Hz, 1H), 5.56 (dd, J = 8.6, 5.4 Hz, 1H), 4.11-4.03 (m, 1H), 3.96 (tp, J = 18.1, 5.8, 5.1 Hz, 6H), 3.82 (s, 3H), 3.73 (dd, J = 11.0, 4.5 Hz, 1H), 3.61-3.45 (m, 4H), 3.41 (dd, J = 10.9, 6.3 Hz, 1H), 3.13 (dt, J = 24.6, 7.8 Hz, 4H), 3.00-2.88 (m, 1H), 2.47-2.26 (m, 4H),; 608.5 [M + H]⁺ 1.34 272

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)-3- morpholinopyroli- dine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.93 (d, J = 9.4 Hz, 1H), 10.28 (s, 1H), 9.72 (s, 1H), 7.55 (s, 1H), 7.18 (tt, J = 9.3, 2.4 Hz, 1H), 7.10 (h, J = 4.5 Hz, 2H), 6.90 (dd, J = 17.0, 10.2 Hz, 1H), 6.71 (s, 1H), 6.22 (dd, J = 16.9, 2.1 Hz, 1H), 6.06 (s, 1H), 5.71 (dd, J = 10.1,2.1 Hz, 1H), 5.56 (dd, J = 8.6, 5.4 Hz, 1H), 4.11-4.04 (m, 1H), 3.97 (q, J = 12.6, 9.9 Hz, 5H), 3.82 (s, 3H), 3.73 (dd, J = 11.0, 4.5 Hz, 1H), 3.54 (dtd, J = 17.8, 12.9, 11.4, 7.3 Hz, 3H), 3.42 (dd, J = 11.0, 6.3 Hz, 1H), 3.14 (dt, J = 28.6, 9.4 Hz, 4H), 3.00-2.89 (m, 1H), 2.36 (dddd, J = 26.2, 13.2, 10.7, 6.7 Hz, 3H),; 608.5 [M + H]⁺ 1.32 273

N-(5-((6-((R)- 3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide 594.5 [M + H]⁺ 1.37 274

N-(5-((6-((R)- 3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methyl-3- oxopiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.71 (s, 1H), 8.41 (s, 1H), 8.27 (d, J = 0.9 Hz, 1H), 6.97 (h, J = 4.5 Hz, 3H), 6.74 (s, 1H), 6.66 (tt, J = 8.9, 2.4 Hz, 1H), 6.62 (s, 1H), 6.40-6.20 (m, 2H), 5.74 (dd, J = 9.8, 1.7 Hz, 1H), 5.62 (dd, J = 8.8, 4.6 Hz, 1H), 4.02 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.46 (s, 2H), 3.35 (d, J = 8.1 Hz, 4H), 3.11-3.02 (m, 2H), 2.97 (s, 3H), 2.84 (dd, J = 6.3, 4.6 Hz, 2H), 2.82-2.67 (m, 4H), 2.44 (tt, J = 11.0, 3.8 Hz, 1H), 2.31 (dtd, J = 12.6, 8.1,4.7 Hz, 1H), 2.04-1.97 (m, 2H), 1.74-1.62 (m, 2H),; 649.5 [M + H]⁺ 1.38 275

N-(5-((6-((R)- 3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((1- isopropylpiperidine- 4-yl)amino)piperidine- 1-yl)-4- methoxyphenyl)acrylamide 677.5 [M + H]⁺ 1.31 276

N-(5-((6-((R)-3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((2- (dimethyl- amino)ethyl)- (methyl)amino)piper- idine-1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.37 (s, 1H), 7.03- 6.99 (m, 2H) 6.93 (s, 1H), 6.75 (s, 1H), 6.72-6.65 (m, 2H), 6.40-6.25 (m, 2H), 5.75 (dd, J = 9.7, 1.8 Hz, 1H), 5.67 (dd, J = 8.8, 4.5 Hz, 1H), 4.15 (td, J = 8.1,4.3 Hz, 1H), 4.11-3.84 (m, 4H), 3.85 (s, 2H), 3.11-3.02 (m, 2H), 2.80- 2.59 (m, 8H), 2.49-2.29 (m, 10H), 2.02-1.96 (m, 2H), 1.78-1.67 (m, 2H),; 637.6 [M + H]⁺ 1.25 277

N-(2-(4- (cyclopropyl- methyl)pip- erazine-1-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.92 (s, 1H), 8.57 (s, 1H), 8.37 (s, 1H), 7.47 (d, J = 7.6 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.24 (s, 1H), 6.92 (s, 1H), 6.83 (s, 1H), 6.70 (s, 1H), 6.37 (d, J = 16.8 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.77- 5.73 (m, 1H), 5.73-5.68 (m, 1H), 4.16 (td, J = 7.9, 4.6 Hz, 1H), 4.07 (q, J = 7.9 Hz, 1H), 3.83 (s, 3H), 2.95 (s, 4H), 2.81- 2.72 (m, 3H), 2.44-2.38 (m, 1H), 2.36 (d, J = 6.8 Hz, 2H), 0.87 (m, 3H), 0.63-0.52 (m, 2H), 0.17 (m, 2H),; 556.5 [M + H]⁺ 1.38 278

N-(2-(4-(2- (dimethylamino)- ethyl)piperazine- 1-yl)- 4-methoxy-5-((6- ((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.90 (s, 1H), 8.55 (s, 1H), 8.37 (s, 1H), 7.46 (d, J = 7.6 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.23 (t, J = 7.3 Hz, 1H), 6.94 (s, 1H), 6.80 (s, 1H), 6.69 (s, 1H), 6.36 (d, J = 16.0 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.78-5.73 (m, 1H), 5.71- 5.65 (m, 1H), 4.16 (td, J = 7.9, 4.6 Hz, 1H), 4.06 (dt, J = 8.0, 5.8 Hz, 1H), 3.82 (s, 3H), 2.98-2.88 (m, 4H), 2.80- 2.64 (m, 4H), 2.62-2.57 (m, 2H), 2.54-2.48 (m, 2H), 2.44-2.34 (m, 2H), 2.31 (s, 6H),; 573.5 [M + H]⁺ 1.28 279

N-(2-(4- cyclopentylpiper- azine-1-yl)-4- methoxy- 5-((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.91 (s, 1H), 8.59 (s, 1H), 8.37 (s, 1H), 7.46 (d, J = 7.5 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.23 (dt, J = 7.3 Hz, 1H), 6.95 (s, 1H), 6.82 (s, 1H), 6.70 (s, 1H), 6.36 (d, J = 16.9 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.74 (dd, J = 10.0, 1.4 Hz, 1H), 5.72-5.67 (m, 1H), 4.16 (td, J = 7.9, 4.6 Hz, 1H), 4.07 (q, J = 7.9 Hz, 1H), 3.82 (s, 3H), 2.94 (s, 4H), 2.80- 2.66 (m, 3H), 2.64-2.54 (m, 2H), 2.44-2.30 (m, 2H), 1.92 (m, 2H), 1.73 (m, 2H), 1.61 (m, 2H), 1.52- 1.39 (m, 2H),; 570.5 [M + H]⁺ 1.41 280

N-(2-((1R,4R)-5- ethyl-2,5- diazabicyclo[2.2.1]- heptane-2-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.56 (s, 1H), 8.35 (s, 1H), 7.95 (s, 1H), 7.46 (d, J = 7.6 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.23 (d, J = 7.3 Hz, 1H), 6.80 (s, 1H), 6.68 (s, 1H), 6.64 (s, 1H), 6.38 (d, J = 16.7 Hz, 1H), 6.28 (dd, J = 16.8, 10.0 Hz, 1H), 5.74 (d, J = 10.6 Hz, 1H), 5.70 (dd, J = 8.6, 4.5 Hz, 1H), 4.21-4.12 (m, 1H), 4.05 (dd, J = 15.9, 8.1 Hz, 1H), 3.84 (s, 3H), 3.73 (s, 1H), 3.57 (s, 1H), 3.48 (d, J = 9.2 Hz, 1H), 3.07 (d, J = 8.1 Hz, 1H), 2.81 (s, 2H), 2.78-2.70 (m, 2H), 2.58 (m, 1H), 2.44-2.33 (m, 1H), 1.90 (dd, J = 21.0, 9.5 Hz, 2H), 1.13 (t, J = 7.0 Hz, 3H),; 542.5 [M + H]⁺ 1.34 281

N-(2-((1S,4S)-5- ethyl-2,5- diazabicyclo[2.2.1]- heptane-2-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.55 (s, 1H), 8.34 (s, 1H), 7.95 (s, 1H), 7.46 (d, J = 7.6 Hz, 2H), 7.33 (t, J = 7.6 Hz, 2H), 7.24 (m, 1H), 6.86 (s, 1H), 6.65 (s, 1H), 6.60 (s, 1H), 6.38 (d, J = 16.5 Hz, 1H), 6.29 (dd, J = 16.9, 9.9 Hz, 1H), 5.73 (d, J = 10.5 Hz, 1H), 5.69 (dd, J = 8.6, 4.4 Hz, 1H), 4.14 (td, J = 7.8, 4.6 Hz, 1H), 4.02 (q, J = 7.8 Hz, 1H), 3.83 (s, 3H), 3.72 (s, 1H), 3.58 (s, 1H), 3.46 (d, J = 9.6 Hz, 1H), 3.11 (d, J = 8.2 Hz, 1H), 2.82 (s, 2H), 2.79- 2.66 (m, 2H), 2.58 (m, 1H), 2.43- 2.33 (m, 1H), 1.90 (dd, J = 21.0, 9.6 Hz, 2H), 1.12 (t, J = 7.1 Hz, 3H),; 542.4 [M + H]⁺ 1.35 282

N-(4-methoxy-2-(4- methyl-1H- imidazole-1-yl)-5- ((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.40 (s, 1H), 8.92 (s, 1H), 8.42 (s, 1H), 7.50- 7.43 (m, 3H), 7.36 (t, J = 7.6 Hz, 2H), 7.28-7.25 (m, 1H), 7.15 (s, 1H), 6.79 (s, 1H), 6.75 (s, 1H), 6.72 (s, 1H), 6.44- 6.31 (m, 1H), 6.27-6.15 (m, 1H), 5.80-5.73 (m, 1H), 5.73-5.66 (m, 1H), 4.20 (m, 1H), 4.11-3.99 (m, 1H), 3.88 (s, 3H), 2.77 (m, 1H), 2.49-2.37 (m, 1H), 2.23 (s, 3H),; 498.4 [M + H]⁺ 1.49 283

N-(2-(4-(4- isopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.45 (s, 1H), 8.37 (s, 1H), 7.46 (d, J = 7.3 Hz, 2H), 7.34 (dd, J = 8.3, 6.8 Hz, 2H), 7.24 (s, 1H), 6.89 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.35 (dd, J = 16.9, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.1 Hz, 1H), 5.72 (ddd, J = 13.2, 9.3, 3.0 Hz, 2H), 4.15 (td, J = 7.9, 4.4 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.06 (d, J = 11.4 Hz, 2H), 2.76-2.70 (m, 4H), 2.44-2.25 (m, 3H), 2.09 (d, J = 12.0 Hz, 2H), 1.69-1.64 (m, 3H), 1.09 (d, J = 6.5 Hz, 8H),; 627.6 [M + H]⁺ 1.10 284

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.42 (s, 1H), 8.38-8.34 (m, 1H), 7.46 (d, J = 7.3 Hz, 2H), 7.33 (dd, J = 8.4, 6.8 Hz, 2H), 7.26-7.21 (m, 1H), 6.97 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (ddd, J = 18.4, 9.3, 3.0 Hz, 2H), 4.15 (td, J = 8.0, 4.4 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.66 (t, J = 5.1 Hz, 2H), 3.51 (t, J = 5.0 Hz, 2H), 3.06 (d, J = 11.0 Hz, 2H), 2.77-2.60 (m, 3H), 2.62-2.58 (m, 3H), 2.40 (ddd, J = 10.5, 8.2, 4.3 Hz, 2H), 2.10 (s, 3H), 2.03 (d, J = 13.6 Hz, 2H), 1.71-1.61 (m, 2H), 1.26 (s, 1H),; 627.6 [M + H]⁺ 1.35 285

N-(2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.43 (s, 1H), 8.37 (s, 1H), 7.46 (d, J = 7.6 Hz, 2H), 7.34 (d, J = 7.6 Hz, 2H), 7.23 (d, J = 7.3 Hz, 1H), 6.96 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.41-6.33 (m, 1H), 6.26 (dd, J = 16.9, 9.8 Hz, 1H), 5.72 (ddd, J = 16.7, 9.3, 3.0 Hz, 2H), 4.16 (td, J = 7.9, 4.5 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.72 (s, 2H), 3.07 (d, J = 11.2 Hz, 2H), 2.89 (d, J = 10.7 Hz, 2H), 2.77-2.67 (m, 3H), 2.42-2.35 (m, 1H), 2.30 (dd, J = 13.2, 7.6 Hz, 2H), 2.07 (d, J = 13.3 Hz, 3H), 1.91 (t, J = 10.1 Hz, 3H), 1.73-1.63 (m, 5H),; 614.6 [M + H]⁺ 1.33 286

N-(2-(4-((S)-3- (dimethylamino)- pyrolidine-1- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.49 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.48- 7.44 (m, 2H), 7.33 (dd, J = 8.5, 6.8 Hz, 2H), 7.26-7.20 (m, 1H), 6.94 (s, 1H), 6.75 (s, 1H), 6.69 (s, 1H), 6.34 (dd, J = 16.9, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.71 (ddd, J = 12.4, 9.3, 3.0 Hz, 2H), 4.15 (td, J = 8.0, 4.5 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.05 (ddd, J = 21.8, 9.9, 5.4 Hz, 3H), 2.93 (td, J = 8.4, 5.1 Hz, 1H), 2.75 (tdd, d = 11.7, 5.7, 2.4 Hz, 4H), 2.56 (td, J = 9.0, 6.5 Hz, 1H), 2.42- 2.34 (m, 2H), 2.26 (s, 6H), 2.22-2.16 (m, 1H), 2.10-2.01 (m, 3H), 1.81-1.67 (m, 3H),; 613.6 [M + H]⁺ 1.27 287

N-(5-((6-((R)- 3-(3,4- dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.95 (s, 1H), 9.18 (s, 1H), 8.32 (s, 1H), 8.04-7.99 (m, 1H), 7.54 (dd, J = 8.5, 1.5 Hz, 1H), 7.38 (t, J = 8.1 Hz, 1H), 6.92 (s, 1H), 6.70 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 6.13(s, 1H), 5.76 (dd, J = 9.7, 2.3 Hz, 1H), 5.68 (dd, J = 8.7, 5.7 Hz, 1H), 4.85-4.77 (m, 4H), 4.54 (s, 1H), 4.07 (d, J = 7.8 Hz, 2H), 3.83 (s, 3H), 3.52 (s, 2H), 3.39-3.34 (m, 1H), 3.26 (s, 4H), 3.16 (d, J = 12.1 Hz, 2H), 2.97 (d, J = 8.0 Hz, 1H); 644.2 [M + H]⁺ 1.65 288

N-(5-((6-((R)- 3-(3,4- dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethyl- amino)ethyl)- (methyl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.88 (s, 1H), 9.73 (s, 1H), 8.28 (s, 1H), 8.09 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.41 (t, J = 8.1 Hz, 1H), 7.20 (dd, J = 17.0, 10.2 Hz, 1H), 6.96 (s, 1H), 6.30-6.19 (m, 2H), 5.73-5.66 (m, 2H), 4.33-4.27 (m, 1H), 4.03 (d, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.32 (s, 4H), 2.93 (d, J = 8.3 Hz, 1H), 2.73 (d, J = 4.8 Hz, 6H), 2.61 (s, 3H), 2.30 (dd, J = 13.2, 6.1 Hz, 1H); 604.2 [M + H]⁺ 1.76 289

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.77 (s, 1H), 9.17 (s, 1H), 8.28 (s, 1H), 8.07 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.40 (t, J = 8.1 Hz, 1H), 6.88 (s, 1H), 6.81-6.72 (m, 1H), 6.28- 6.18 (m, 2H), 5.78-5.65 (m, 2H), 4.28 (dd, J = 7.8, 4.0 Hz, 1H), 4.03 (s, 1H), 3.83 (s, 3H), 3.48 (d, J = 11.5 Hz, 2H), 3.42-3.36 (m, 2H), 3.20 (s, 4H), 2.97-2.87 (m, 1H), 2.82 (d, J = 4.6 Hz, 3H), 2.36-2.24 (m, 1H),; 602.2 [M + H]⁺ 1.64 290

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethyl- amino)piper- idine-1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.25 (s, 1H), 8.75 (s, 1H), 8.32 (s, 1H), 7.93 (s, 1H), 7.53 (dd, J = 8.5, 1.5 Hz, 1H), 7.39 (t, J = 8.1 Hz, 1H), 6.92 (s, 1H), 6.75 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 2H), 5.79-5.74 (m, 1H), 5.71-5.66 (m, 1H), 4.33-4.30 (m, 1H), 4.06 (d, J = 7.8 Hz, 1H), 3.82 (s, 3H), 3.68 (d, J = 7.3 Hz, 1H), 3.38 (d, J = 6.9 Hz, 1H), 3.08 (s, 1H), 2.95 (d, J = 4.9 Hz, 1H), 2.81 (s, 1H), 2.73 (d, J = 5.5 Hz, 6H), 2.36-2.28 (m, 1H), 2.13 (d, J = 9.5 Hz, 2H), 2.03 (d, J = 11.0 Hz, 2H), 1.90 (d, J = 7.1 Hz, 1H),; 630.2 [M + H]⁺ 1.72 291

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.54 (d, J = 30.1 Hz, 1H), 8.25 (d, J = 2.9 Hz, 1H), 7.64 (s, 1H), 7.53 (dd, J = 8.5, 1.5 Hz, 1H), 7.40 (t, J = 8.1 Hz, 2H), 6.85 (dd, J = 17.0, 10.2 Hz, 1H), 6.66 (d, J = 21.0 Hz, 1H), 6.25-6.08 (m, 2H), 5.74-5.65 (m, 2H), 4.27 (q, J = 6.7, 5.3 Hz, 1H), 3.99 (d, J = 7.8 Hz, 1H), 3.88 (s, 1H), 3.81 (d, J = 3.1 Hz, 3H), 3.59 (s, 1H), 3.48 (s, 1H), 3.41-3.36 (m, 1H), 3.05 (d, J = 8.4 Hz, 1H), 2.80 (dd, J = 8.3, 4.6 Hz, 6H), 2.36-2.21 (m, 4H),; 616.2 [M + H]⁺ 1.64 292

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.81 (s, 1H), 9.21 (s, 1H), 8.29 (s, 1H), 8.07 (s, 1H), 7.53 (dd, J = 8.5, 1.5 Hz, 1H), 7.40 (t, J = 8.1 Hz, 1H), 6.90-6.72 (m, 2H), 6.31-6.17 (m, 2H), 5.73 (ddd, J = 23.7, 9.4, 3.8 Hz, 2H), 4.31-4.27 (m, 1H), 4.02 (d, J = 8.0 Hz, 2H), 3.83 (s, 3H), 3.52 (d, J = 11.3 Hz, 2H), 3.40- 3.29 (m, 3H), 3.22-3.14 (m, 4H), 2.93 (dd, J = 8.1,4.3 Hz, 1H), 2.34-2.24 (m, 1H), 1.32 (t, J = 7.2 Hz, 3H); 616.2 [M + H]⁺ 1.68 293

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 698.3 [M + H]⁺ 1.63 294

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 9.67 (s, 1H), 9.60 (s, 1H), 8.26 (s, 1H), 7.64 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.39 (t, J = 8.1 Hz, 1H), 6.86 (dd, J = 17.0, 10.2 Hz, 1H), 6.70 (s, 1H), 6.21 (dd, J = 17.0, 2.1 Hz, 1H), 6.13(s, 1H), 5.70 (dd, J = 9.9, 2.4 Hz, 2H), 4.31- 4.27 (m, 1H), 3.97 (s, 2H), 3.82 (s, 3H), 3.56 (d, J = 12.1 Hz, 2H), 3.50-3.47 (m, 1H), 3.38 (d, J = 7.0 Hz, 3H), 3.11 (dd, J = 15.7, 7.3 Hz, 4H), 2.98-2.87 (m, 1H), 2.32 (dd, J = 14.0, 6.7 Hz, 3H), 1.09 (t, J = 7.0 Hz, 2H),; 658.4 [M + H]⁺ 1.37 295

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.79 (s, 1H), 9.59 (d, J = 33.2 Hz, 1H), 8.27 (d, J = 2.6 Hz, 1H), 7.62 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.40 (dd, J = 8.1,2.3 Hz, 1H), 6.87 (dd, J = 17.0, 10.2 Hz, 1H), 6.68 (d, J = 22.7 Hz, 1H), 6.21 (dd, J = 17.0, 2.1 Hz, 1H), 6.12 (s, 1H), 5.73-5.66 (m, 2H), 4.31-4.26 (m, 1H), 4.05 (s, 1H), 3.81 (d, J = 3.2 Hz, 3H), 3.53 (d, J = 20.3 Hz, 4H), 3.43- 3.38 (m, 1H), 3.16 (d, J = 7.6 Hz, 4H), 2.96 (d, J = 6.3 Hz, 2H), 2.44-2.27 (m, 4H), 1.65-1.55 (m, 1H), 1.50-1.40 (m, 1H),; 658.4 [M + H]⁺ 1.38 296

N-(5-((6-((R)-3-(4- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide 592.5 [M + H]⁺ 1.48 297

N-(5-((6-((R)-3- (2,3-difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.56 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.40-7.31 (m, 1H), 7.08- 7.01 (m, 2H), 6.98 (s, 1H), 6.82 (s, 1H), 6.75 (s, 1H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.93 (dd, J = 8.8, 4.5 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.19- 4.11 (m, 1H), 4.11-4.01 (m, 1H), 3.83 (s, 3H), 2.96-2.91 (m, 4H), 2.88- 2.81 (m, 1H), 2.75-2.55 (m, 4H), 2.52 (q, J = 7.2 Hz, 2H), 2.36-2.27 (m, 1H), 1.16 (t, J = 7.2 Hz, 3H); 566.4 [M + H]⁺ 1.21 298

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.91 (s, 1H), 8.43 (s, 1H), 8.36 (s, 1H), 7.35- 7.28 (m, 1H), 7.21 (s, 1H), 7.04-6.94 (m, 1H), 6.94-6.86 (m, 1H), 6.75 (s, 1H), 6.73 (s, 1H), 6.30 (dt, J = 16.9, 13.2 Hz, 2H), 5.90 (dd, J = 8.7, 4.3 Hz, 1H), 5.77 (dd, J = 10.0, 1.2 Hz, 1H), 4.16-4.03 (m, 2H), 3.86 (s, 3H), 3.84- 3.75 (m, 2H), 3.68-3.63 (m, 2H), 2.93-2.80 (m, 5H), 2.34-2.26 (m, 1H), 2.17(s, 3H) 580.4 [M + H]⁺ 1.41 299

N-(2-(4- cyclopropylpiperazine- 1-yl)-5-((6-((R)-3- (2,5-difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.91 (s, 1H), 8.60 (s, 1H), 8.37 (s, 1H), 7.36- 7.28 (m, J = 9.0, 5.8, 3.2 Hz, 1H), 7.00 (td, J = 9.2, 4.4 Hz, 1H), 6.95 (s, 1H), 6.93-6.86 (m, 1H), 6.80 (s, 1H), 6.77 (s, 1H), 6.40-6.25 (m, 2H), 5.90 (dd, J = 8.7, 4.3 Hz, 1H), 5.75 (dd, J = 9.8, 1.6 Hz, 1H), 4.16-4.04 (m, 2H), 3.82 (s, 3H), 2.92-2.77 (m, 9H), 2.34- 2.24 (m, 1H), 1.76-1.70 (m, 1H), 0.55- 0.50 (m, 2H), 0.49-0.43 (m, 2H); 578.5 [M + H]⁺ 1.23 300

N-(5-((6-((R)-3- (2,5-difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- propylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.91 (s, 1H), 8.57 (s, 1H), 8.37 (s, 1H), 7.36- 7.28 (m, 1H), 7.04-6.94 (m, 2H), 6.93- 6.87 (m, 1H), 6.82 (s, 1H), 6.77 (s, 1H), 6.30 (dt, J = 17.0, 13.1 Hz, 2H), 5.90 (dd, J = 8.6, 4.2 Hz, 1H), 5.74 (dd, J = 10.0, 1.1 Hz, 1H), 4.16-4.03 (m, 2H), 3.84 (m, 3H), 2.96-2.88 (m, 4H), 2.87-2.79 (m, 1H), 2.70-2.63 (m, 2H), 2.43-2.38 (m, 2H), 2.34- 2.24 (m, 1H), 1.64-1.53 (m, 4H), 0.95 (t, J = 7.4 Hz, 3H); 580.5 [M + H]⁺ 1.24 301

N-(5-((6-((R)-3- (2,5-difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.71 (s, 1H), 8.36 (s, 1H), 8.17 (s, 1H), 7.35- 7.29 (m, 1H), 7.00 (td, J = 9.2, 4.4 Hz, 1H), 6.92-6.85 (m, J = 10.9, 5.4 Hz, 2H), 6.77 (s, 1H), 6.72 (s, 1H), 6.42- 6.23 (m, 2H), 5.90 (dd, J = 8.6, 4.1 Hz, 1H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.15-4.01 (m, 2H), 3.85 (s, 3H), 3.22- 3.03 (m, 3H) 2.93-2.76 (m, 2H), 2.35-2.12 (m, 9H), 1.99-1.89 (m, 1H) 566.5 [M + H]⁺ 1.17 302

N-(5-((6-((R)-3-(2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.73 (s, 1H), 8.36 (s, 1H), 8.14 (s, 1H), 7.35- 7.29 (m, 1H), 7.02-6.87 (m, 3H), 6.77 (s, 1H), 6.72 (s, 1H), 6.41-6.22 (m, 2H), 5.90 (dd, J = 8.6, 4.2 Hz, 1H), 5.76-5.71 (m, 1H), 4.15-4.01 (m, 2H), 3.85 (s, 1H), 3.78-3.74 (m, 4H), 3.21-3.08 (m, 3H), 3.02-2.96 (m, 1H), 2.85-2.77 (m, 1H), 2.60-2.55 (m, 2H), 2.52-2.44 (m, 2H), 2.33- 2.14 (m,3H), 2.00-1.90 (m, 1H); 608.46 [M + H]⁺ 1.18 303

N-(5-((6-((R)-3-(2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18(s, 1H), 7.29-7.20 (m, 1H), 7.15 (td, J = 4.3, 9.3 Hz, 1H), 7.04 (tt, J = 3.6, 8.2 Hz, 1H), 6.93 (s, 1H), 6.63-6.45 (m, 2H), 6.45-6.27 (m, 1H), 5.88-5.68 (m, 2H), 4.16 (dt, J = 4.0, 8.1 Hz, 1H), 3.99 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.29-3.21 (m, 1H), 3.20-3.09 (m, 6H), 3.05-2.92 (m, 3H), 2.92-2.74 (m, 4H), 2.67- 2.57 (m, 1H), 2.33-2.21 (m, 1H), 2.11-2.02 (m, 2H), 1.89-1.73 (m, 2H), 1.32 (s, 3H), 1.30 (s, 3H); 663.4 [M + H]⁺ 1.19 304

N-(5-((6-((R)-3-(2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)- 3-(dimethylamino)pyrolidine- 1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.17 (s, 1H), 8.06 (s, 1H), 7.17-7.08 (m, 1H), 7.08-6.98 (m, 1H), 6.98- 6.87 (m, 1H), 6.81 (s, 1H), 6.49-6.34 (m, 2H), 6.31-6.20 (m, 1H), 5.73- 5.60 (m, 2H), 4.04 (td, J = 4.2, 7.9 Hz, 1H), 3.88 (q, J = 8.0 Hz, 1H), 3.78 (s, 3H), 3.29-3.22 (m, 2H), 3.15-3.08 (m, 1H), 3.08-2.99 (m, 3H), 2.97- 2.84 (m, 2H), 2.83-2.65 (m, 4H), 2.47 (s, 6H), 2.22-2.10 (m, 2H), 2.07- 1.98 (m, 2H), 1.76-1.63 (m, 2H); 649.3 [M + H]⁺ 1.11 305

N-(5-((6-((R)-3-(2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- (1,4′-bipiperidine)-1 yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 8.06 (s, 1H), 7.18-7.08 (m, 1H), 7.08-6.98 (m, 1H), 6.98- 6.87 (m, 1H), 6.80 (s, 1H), 6.52-6.35 (m, 2H), 6.28-6.20 (m, 1H), 5.75- 5.59 (m, 2H), 4.08-3.98 (m, 1H), 3.87 (q, J = 8.0 Hz, 1H), 3.77 (s, 3H), 3.12-3.01 (m, 5H), 2.98-2.92 (m, 1H), 2.91-2.80 (m, 1H), 2.80-2.63 (m, 7H), 2.48-2.37 (m, 2H), 2.21- 2.10 (m, 1H), 2.07-1.99 (m, 2H), 1.99-1.90 (m, 2H), 1.80-1.59 (m, 5H); 649.3 [M + H]⁺ 1.11 306

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)- (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.85 (s, 1H), 8.25 (s, 1H), 8.02 (s, 1H), 7.46- 7.37 (m, 1H), 7.20-7.09 (m, 3H), 6.96 (s, 1H), 6.23 (dd, J = 17.0, 2.2 Hz, 1H), 6.05 (s, 1H), 5.71 (dd, J = 10.1,2.2 Hz, 1H), 4.46 (t, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.32 (s, 4H), 2.94- 2.86 (m, 1H), 2.73 (d, J = 4.8 Hz, 6H), 2.61 (s, 3H), 2.44 (s, 1H), 1.53 (d, J = 72.7 Hz, 2H); 554.5 [M + H]⁺ 1.16 307

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.73 (s, 1H), 9.14 (s, 1H), 8.25 (s, 1H), 8.02 (s, 1H), 7.42 (ddd, J = 14.7, 8.4, 6.4 Hz, 1H), 7.12 (t, J = 8.4 Hz, 2H), 6.88 (s, 1H), 6.76 (dd, J = 17.0, 10.3 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 6.02 (s, 1H), 5.76 (dd,J = 10.1, 2.0 Hz, 1H), 5.68 (t, J = 7.7 Hz, 1H), 4.44 (t, J = 7.5 Hz, 1H), 3.80 (s, 3H), 3.50 (d, J = 11.6 Hz, 2H), 3.35 (d, J = 10.8 Hz, 2H), 3.21-3.14 (m, 4H), 2.93- 2.86 (m, 1H), 2.83 (d, J = 4.5 Hz, 3H), 2.47-2.42 (m, 1H), 1.64-1.40 (m, 2H); 552.5 [M + H]⁺ 1.11 308

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.03 (s, 1H), 9.17 (s, 1H), 8.27 (s, 1H), 7.88 (s, 1H), 7.46-7.37 (m, 1H), 7.12 (t, J = 8.5 Hz, 2H), 6.90 (s, 1H), 6.72 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.96 (s, 1H), 5.76 (dd, J = 10.1,2.0 Hz, 1H), 5.68 (t, 2H), 4.49 _ 4.45 (m, 1H), 4.05-4.02 (m, 1H), 3.79 (s, 3H), 3.30 (d, J = 14.0 Hz, 1H), 3.21 (d, J = 11.5 Hz, 2H), 2.96- 2.88 (m, 1H), 2.80 (d, J = 11.6 Hz, 2H), 2.75 (d, J = 4.9 Hz, 6H), 2.12 (d, J = 11.8 Hz, 2H), 2.05-1.95 (m, 2H); 580.5 [M + H]⁺ 1.14 309

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino) piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.41 (s, 1H), 9.29 (s, 1H), 8.31 (s, 1H), 7.80 (s, 1H), 7.43 (ddd, J = 8.5, 6.4, 2.0 Hz, 1H), 7.14 (d, J = 8.5 Hz, 2H), 6.95 (s, 1H), 6.73 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.96 (s, 1H), 5.77 (dd, J = 10.2, 1.9 Hz, 1H), 5.72-5.67 (m, 1H), 4.52-4.45 (m, 1H), 4.23-4.12 (m, 2H), 4.11- 4.02 (m, 1H), 3.80 (s, 3H), 3.49-3.43 (m, 2H), 3.38 (q, J = 7.0 Hz, 2H), 3.26 (d, J = 11.4 Hz, 2H), 2.98-2.90 (m, 1H), 2.83 (d, J = 11.6 Hz, 2H), 2.75- 2.64 (m, 2H), 2.26 (d, J = 11.3 Hz, 2H), 2.20-2.09 (m, 2H), 1.17 (d, J = 6.3 Hz, 6H),; 650.3 [M + H]⁺ 1.23 310

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 10.37 (s, 1H), 9.31 (s, 1H), 8.31 (s, 1H), 7.80 (s, 1H), 7.46-7.41 (m, 1H), 7.13 (t, J = 8.5 Hz, 2H), 6.93 (s, 1H), 6.74 (dd, J = 17.0, 10.2 Hz, 1H), 6.27-6.23 (m, 1H), 5.96 (s, 1H), 5.78-5.67 (m, 2H), 4.53-4.46 (m, 2H), 4.09-4.00 (m, 2H), 3.79 (s, 3H), 3.73 (d, J = 12.9 Hz, 1H), 3.48 (d, J = 8.8 Hz, 2H), 3.39- 3.36 (m, 3H), 3.05-2.93 (m, 2H), 2.83 (s, 2H), 2.51 (q, J = 1.9 Hz, 3H), 2.48-2.43 (m, 1H), 2.20 (s, 2H), 2.12 (s, 1H), 2.07 (s, 3H),; 663.6 [M + H]⁺ 1.17 311

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.29 (s, 1H), 9.26 (s, 1H), 8.29 (s, 1H), 7.86 (s, 1H), 7.43 (ddd, J = 8.4, 6.4, 2.0 Hz, 1H), 7.13 (t, J = 8.5 Hz, 2H), 6.91 (s, 1H), 6.76 (dd, J = 16.9, 10.3 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.97 (s, 1H), 5.80-5.74 (m, 1H), 5.69 (s, 1H), 4.52-4.48 (m, 1H), 4.08-4.01 (m, 1H), 3.79 (s, 7H), 3.69 (s, 4H), 3.60 (t, J = 6.7 Hz, 1H), 3.53-3.45 (m, 1H), 3.41-3.35 (m, 1H), 3.24 (d, J = 11.1 Hz, 2H), 2.97-2.90 (m, 1H), 2.82 (t, J = 11.4 Hz, 2H), 2.46 (d, J = 8.8 Hz, 1H), 2.15 (d, J = 15.1 Hz, 4H), 1.32 (d, J = 6.6 Hz, 6H),; 663.3 [M + H]⁺ 1.14 312

N-(5-((6-((S)-3-(2,6- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 649.6 [M + H]⁺ 1.10 313

N-(5-((6-((S)-3-(2,6- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)- 3,4-dimethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.31 (s, 1H), 9.25 (s, 1H), 8.30 (s, 1H), 7.84 (s, 1H), 7.43 (ddd, J = 8.4, 6.4, 2.0 Hz, 1H), 7.13 (t, J = 8.5 Hz, 2H), 6.92 (s, 1H), 6.77-6.69 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.98 (d, J = 20.2 Hz, 1H), 5.77 (dd, J = 10.1, 1.9 Hz, 1H), 5.70 (s, 1H), 4.51-4.46 (m, 1H), 4.10- 4.02(m, 1H), 3.84 (d, J = 12.7 Hz, 2H), 3.79 (s, 3H), 3.76 (s, 1H), 3.66 (d, J = 8.9 Hz, 2H), 3.50-3.36 (m, 3H), 3.29-3.22 (m, 2H), 2.93 (d, J = 3.2 Hz, 1H), 2.84 (s, 3H), 2.80 (d, J = 12.4 Hz, 1H), 2.45 (d, J = 3.7 Hz, 1H), 2.26- 2.06 (m, 4H), 1.62 (dd, J = 5.1,2.7 Hz, 1H), 1.42 (d, J = 6.1 Hz, 3H),; 649.3 [M + H]⁺ 1.13 314

N-(5-((6-((S)-3-(2,6- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)-3- (dimethylamino)pyrol- idine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide 649.5 [M + H]⁺ 1.10 315

N-(5-((6-((S)-3-(2,6- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino)pyrol- idine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide 649.5 [M + H]⁺ 1.04 316

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2- ((3aS,6aS)-1- methylhexahydro- pyrrolo[3,4-b]pyrrole- 5(1H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.05 (d, J = 1.2 Hz, 1H), 7.44 (dd, J = 7.1,2.0 Hz, 1H), 7.31-7.25 (m, 1H), 7.10 (t, J = 8.9 Hz, 1H), 6.74 (s, 1H), 6.49 (dd, J = 17.0, 10.2 Hz, 1H), 6.28 (dd, J = 17.8, 2.4 Hz, 1H), 5.68 (dd, J = 10.3, 1.5 Hz, 1H), 5.41 (dd, J = 8.5, 4.7 Hz, 1H), 4.03 (td, J = 7.8, 4.2 Hz, 1H), 3.84 (dd, J = 15.9, 7.9 Hz, 1H), 3.75 (s, 3H), 3.21 (dt, J = 3.2, 1.6 Hz, 4H), 3.01 (dt, J = 11.6, 5.9 Hz, 1H), 2.92 (t, J = 8.0 Hz, 12H), 2.84-2.63 (m, 4H), 2.39 (s, 2H), 2.31-2.05 (m, 3H); 594.1 [M + H]+ 1.30 317

N-(5-((6-((R)- 3-(3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- ((3aR,6aR)-1- methylhexahyd ropyrrolo[3,4- b]pyrrole- 5(1H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d2) δ 8.15 (d, J = 3.7 Hz, 1H), 7.56-7.47 (m, 1H), 7.41- 7.32 (m, 1H), 7.20 (td, J = 8.9, 2.3 Hz, 1H), 6.84 (s, 1H), 6.59 (dd, J = 17.0, 10.2 Hz, 1H), 6.42-6.38 (m, 1H), 5.77 (dd, J = 10.3, 1.4 Hz, 1H), 5.51 (dd, J = 8.4, 4.8 Hz, 1H), 4.12 (td, J = 7.9, 4.2 Hz, 1H), 3.99-3.91 (m, 1H), 3.84 (s, 3H), 3.33-3.27 (m, 3H), 3.14-3.06 (m, 1H), 3.01 (dd, J = 11.4, 7.1 Hz, 2H), 2.93- 2.72 (m, 4H), 2.48 (s, 3H), 2.40-2.14 (m, 3H), 1.68 (ddd, J = 19.5, 12.2, 7.3 Hz, 1H); 594.4 [M + H]⁺ 1.30 318

N-(2-(4-(4- ethylpiperazine- 1-yl)piperidine- 1-yl)-5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.28 (s, 1H), 8.33 (s, 1H), 7.89 (s, 1H), 7.23 (t, J = 7.5, 1.9 Hz, 1H), 7.15 (t, J = 7.4 Hz, 1H), 7.08 (t, J = 7.5 Hz, 1H), 6.93 (s, 1H), 6.74 (dtd, J = 21.5, 10.7, 4.0 Hz, 1H), 6.26 (dd, J = 17.0, 2.0 Hz, 1H), 6.12 (s, 1H), 5.81-5.73 (m, 1H), 5.69 (dd, J = 8.6, 5.5 Hz, 1H), 4.32 (td, J = 7.6, 4.3 Hz, 2H), 4.09 (q, J = 7.7 Hz, 2H), 3.82 (s, 4H), 3.70 (q, J = 12.8, 10.0 Hz, 3H), 3.64- 3.56 (m, 2H), 3.30-3.14 (m, 5H), 2.83 (t, J = 11.2 Hz, 2H), 2.71 (d, J = 4.8 Hz, 1H), 2.29- 2.05 (m, 8H), 1.36-1.24 (m, 4H),; 645.5 [M + H]⁺ 1.16 319

N-(5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((2- methoxyethyl) (methyl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.12 (s, 1H), 8.89 (s, 1H), 8.28 (s, 1H), 7.32 (s, 1H), 7.08 (t, J = 7.3 Hz, 1H), 6.99 (t, J = 7.6 Hz, 1H), 6.78 (s, 1H), 6.60 (s, 1H), 6.40 (dd, J = 17.0, 1.9 Hz, 1H), 6.30 (dd, J = 16.9, 9.9 Hz, 1H), 5.89 (dd, J = 8.8, 4.5 Hz, 1H), 5.69 (dd, J = 9.9, 1.9 Hz, 1H), 4.18-4.04 (m, 2H), 3.84 (s, 3H), 3.47 (t, J = 4.9 Hz, 2H), 3.43 (s, 3H), 2.98 (h, J = 4.1 Hz, 2H), 2.85 (dtd, J = 12.7, 8.0, 4.7 Hz, 1H), 2.76 (s, 3H), 2.38-2.23 (m, 5H),; 537.3 [M + H]⁺ 1.58 320

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.32 (s, 1H), 8.33 (s, 1H), 7.83 (d, J = 13.0 Hz, 1H), 7.23 (td, J = 7.5, 1.9 Hz, 1H), 7.15 (t, J = 7.3 Hz, 1H), 7.08 (t, J = 7.5 Hz, 1H), 6.95 (d, J = 11.7 Hz, 1H), 6.65 (ddd, J = 25.1, 17.0, 10.2 Hz, 1H), 6.25 (dt, J = 17.1, 2.1 Hz, 1H), 6.12 (s, 1H), 5.77 (dd, J = 10.0, 1.9 Hz, 1H), 5.68 (dd, J = 8.6, 5.5 Hz, 1H), 4.74-4.68 (m, 1H), 4.65 (d, J = 2.5 Hz, 1H), 4.57 (s, 1H), 4.51 (d, J = 9.1 Hz, 1H), 4.32 (td, J = 7.6, 4.3 Hz, 1H), 4.21 (d, J = 10.2 Hz, 1H), 4.09 (q, J = 7.7 Hz, 1H), 3.83 (d, J = 2.6 Hz, 3H), 3.69 (td, J = 7.2, 6.7, 3.7 Hz, 1H), 3.60 (pt, J = 6.6, 3.5 Hz, 1H), 3.49-3.42 (m, 1H), 3.29 (dd, J = 30.1, 12.5 Hz, 2H), 3.11 (tt, J = 7.3, 3.6 Hz, 1H), 2.97 (ddd, J = 12.4, 7.7, 4.4 Hz, 1H), 2.87 (p, J = 11.5, 9.2 Hz, 1H), 2.35 (d, J = 10.8 Hz, 1.21 321

N-(5-((6-((R)-3- (3-fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)- 3-morpholinopyrol idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.43- 9.25 (m, 1H), 8.49 (s, 1H), 8.13(s, 1H), 7.39 (td, J = 8.0, 6.1 Hz, 2H), 7.28-7.14 (m, 2H), 7.08 (td, J = 8.6, 2.7 Hz, 1H), 6.49 (s, 1H), 6.26-6.14 (m, 2H), 5.68 (dd, J = 10.1,2.1 Hz, 1H), 5.54(dd,J = 8.7, 5.0 Hz, 1H), 4.12 (td, J = 7.9, 3.8 Hz, 1H), 3.80 (s, 5H), 3.59 (s, 3H), 3.17 (d, J = 36.8 Hz, 3H), 2.75 (dtd, J = 12.0, 8.0, 3.8 Hz, 3H), 2.38 (s, 2H), 2.29-2.15 (m, 2H), 2.10 (s, 1H), 1.72 (s, 1H), 1.26 (td, J = 7.2, 4.8 Hz, 2H); 590.4 [M + H]⁺ 1.11 322

N-(2-(4- ((1R,5S)-8-oxa- 3-azabicyclo[3.2.1] octan-3- yl)piperidine-1- yl)-5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.00 (s, 1H), 9.02 (s, 1H), 8.23 (s, 1H), 8.05 (s, 1H), 7.53 (t, J = 7.4 Hz, 1H), 7.40 (t, J = 7.3 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.88 (s, 1H), 6.59 (dd, J = 17.1, 10.2 Hz, 1H), 6.24 (d, J = 17.4 Hz, 2H), 5.81-5.65 (m, 2H), 4.51 (s, 2H), 4.29-4.20 (m, 2H), 3.81 (s, 3H), 3.40-3.33 (m, 3H), 3.28 (dd, J = 10.8, 5.7 Hz, 2H), 3.20-3.12 (m, 3H), 2.88 (s, 1H), 2.73 (t, J = 11.8 Hz, 2H), 2.21 (d, J = 7.9 Hz, 3H), 2.12 (s, 2H), 2.06 (d, J = 11.6 Hz, 1H), 1.95 (s, 2H); 664.5 [M + H]⁺ 1.24 323

N-(5-((6-((R)-3- (3-fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)- 3-morpholinopyrol idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.34 (s, 1H), 8.48 (s, 1H), 8.12 (s, 1H), 7.45-7.33 (m, 2H), 7.25 (d, J = 7.8 Hz, 1H), 7.22- 7.16 (m, 1H), 7.08 (td, J = 8.6, 2.6 Hz, 1H), 6.50 (d, J = 3.0 Hz, 1H), 6.48-6.42 (m, 1H), 6.20 (d, J = 2.2 Hz, 2H), 5.68 (dd, J = 10.2, 2.1 Hz, 1H), 5.54 (dd, J = 8.7, 4.9 Hz, 1H), 4.12 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 4H), 3.59 (t, J = 4.7 Hz, 4H), 3.38 (dt, J = 9.5, 4.8 Hz, 1H), 3.28 (t, J = 8.1 Hz, 1H), 3.24-3.15 (m, 2H), 2.84-2.69 (m, 2H), 2.47-2.42 (m, 2H), 2.38 (q, J = 5.7, 5.1 Hz, 2H), 2.23 (dtd, J = 12.7, 8.0, 4.9 Hz, 1H), 2.09 (d, J = 7.4 Hz, 1H), 1.77- 1.66 (m, 1H); 590.5 [M + H]⁺ 1.10 324

N-(2-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1] heptane-5-yl)- 5-((6-((R)-3- (2,4-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.68 (s, 1H), 8.36 (s, 1H), 7.95 (s, 1H), 7.56 (d, J = 7.0 Hz, 1H), 6.90 (s, 1H), 6.82 (m, 3H), 6.69 (d, J = 15.8 Hz, 1H), 6.39 (d, J = 16.7 Hz, 1H), 6.32-6.23 (m, 1H), 5.85 (s, 1H), 5.75 (d, J = 10.0 Hz, 1H), 4.65 (s, 1H), 4.11 (d, J = 4.5 Hz, 1H), 4.06 (d, J = 7.8 Hz, 1H), 3.86 (s, 3H), 3.75 (d, J = 7.5 Hz, 1H), 3.43 (d, J = 10.2 Hz, 1H), 3.24 (d, J = 10.1 Hz, 1H), 2.79 (d, J = 12.3 Hz, 1H), 2.35-2.22 (m, 1H), 2.17 (s, 2H), 2.08 (d, J = 10.1 Hz, 1H), 1.99 (d, J = 9.6 Hz, 1H),; 551.4 [M + H]⁺ 1.36 325

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.93 (s, 1H), 8.51 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.56 (dt, J = 14.6, 7.1 Hz, 1H), 6.96 (s, 1H), 6.88-6.80 (m, 2H), 6.77 (d, J = 7.7 Hz, 2H), 6.42-6.34 (m, 1H), 6.27 (dd, J = 17.0, 10.0 Hz, 1H), 5.88 (dd, J = 8.7, 4.4 Hz, 1H), 5.76 (dd, J = 9.9, 1.5 Hz, 1H), 4.16-4.04 (m, 2H), 3.91- 3.87 (m, 6H), 2.89 (q, J = 3.8 Hz, 4H), 2.81 (ddt, J = 12.7, 8.2, 4.2 Hz, 1H), 2.33-2.23 (m, 1H), 2.17 (s, 1H),; 539.4 [M + H] 1.50 326

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.53 (s, 1H), 8.37 (s, 1H), 7.56 (dt, J = 15.2, 7.4 Hz, 1H), 6.94 (s, 1H), 6.87-6.78 (m, 3H), 6.75 (s, 1H), 6.43-6.34 (m, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.88 (dd, J = 8.6, 4.4 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.14-4.06 (m, 2H), 3.84 (s, 3H), 2.92 (s, 3H), 2.84- 2.76 (m, 1H), 2.40 (s, 3H), 2.31- 2.25 (m, 1H), 2.23 (s, 1H), 2.17 (s, 1H), 2.02 (s, 1H), 1.26 (s, 1H), 1.19 (t, J = 7.3 Hz, 1H),; 552.4[M + H] 1.21 327

N-(5-((6-((R)-3-(2,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((2- methoxyethyl)(methy l)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.13 (s, 1H), 8.99 (s, 1H), 8.37 (s, 1H), 7.36-7.28 (m, 1H), 7.04-6.96 (m, 2H), 6.92-6.85 (m, 1H), 6.79 (s, 1H), 6.78 (s, 1H), 6.35 (qd, J = 16.9, 5.8 Hz, 2H), 5.90 (dd, J = 8.7, 4.3 Hz, 1H), 5.69 (dd, J = 9.8, 1.9 Hz, 1H), 4.15-4.06 (m, 2H), 3.85 (s, 3H), 3.47 (t, J = 4.9 Hz, 2H), 3.43 (s, 3H), 3.02-2.93 (m, 2H), 2.88- 2.78 (m, 1H), 2.76 (s, 3H), 2.35- 2.24 (m, 1H); 541.5[M + H]⁺ 1.63 328

N-(2-((1R,4R)-2- oxa-5-azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(2,5-difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.59 (s, 1H), 8.33 (s, 1H), 7.94 (s, 1H), 7.35-7.28 (m, 1H), 7.14 (s, 1H), 7.00 (td, J = 9.2, 4.3 Hz, 1H), 6.93- 6.87 (m, 1H), 6.73 (s, 1H), 6.71 (s, 1H), 6.41-6.24 (m, 2H), 5.89 (dd, J = 8.3, 4.0 Hz, 1H), 5.78-5.73 (m, 1H), 4.65 (s, 1H), 4.19-4.03 (m, 4H), 3.91-3.88 (m, 1H), 3.86 (s, 3H), 3.80-3.74 (m, 2H), 3.48- 3.43 (m, 1H), 3.23-3.18 (m, 1H), 2.87-2.78 (m, 1H), 2.34-2.24 (m, 1H); 551.4[M + H]⁺ 1.28 329

N-(2-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(2,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.66 (s, 1H), 8.35 (s, 1H), 7.95 (s, 1H), 7.35-7.28 (m, 1H), 7.07-6.96 (m, 2H), 6.93-6.86 (m, 1H), 6.71 (s, 1H), 6.67 (s, 1H), 6.42-6.23 (m, 2H), 5.89 (dd, J = 8.6, 4.3 Hz, 1H), 5.79-5.72 (m, 1H), 4.26-3.97 (m, 4H), 3.91-3.83 (m, 4H), 3.83- 3.72 (m, 2H), 3.46-3.38 (m, 1H), 3.28-3.20 (m, 1H), 2.86-2.76 (m, 1H), 2.34-2.22 (m, 2H);551.4 [M + H]⁺ 1.28 330

N-(5-((6-((R)-3-(2,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(2-methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.06 (s, 1H), 8.43 (s, 1H), 7.40 (s, 1H), 7.35-7.28 (m, 1H), 7.15 (s, 1H), 7.02 (td, J = 9.1, 4.3 Hz, 1H), 6.96-6.88 (m, 2H), 6.82 (s, 1H), 6.79-6.72 (m, 2H), 6.29 (d, J = 16.9 Hz, 1H), 6.06 (dd, J = 16.8, 10.3 Hz, 1H), 5.91 (dd, J = 8.5, 4.5 Hz, 1H), 5.74-5.68 (m, 1H), 4.18 (td, J = 7.9, 4.3 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.90 (s, 3H), 2.90- 2.79 (m, 1H), 2.37-2.30 (m, 1H), 2.26 (S, 3H); 534.4 [M + H]⁺ 1.26 331

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2- ((3aR,6aR)-1- methylhexahydropyrr olo[3,4-b]pyrrole- 5(1H)-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.40 (s, 1H), 8.45 (s, 1H), 8.30 (s, 1H), 7.78 (s, 1H), 7.71 (d, J = 7.9 Hz, 1H), 7.54 (d, J = 7.6 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.68-6.59 (m, 2H), 6.56-6.42 (m, 2H), 5.77-5.64 (m, 2H), 4.16 (td, J = 8.0, 4.1 Hz, 1H), 4.04 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.65-3.54 (m, 2H), 3.31- 3.23 (m, 1H), 3.09-3.02 (m, 1H), 3.00-2.87 (m, 2H), 2.85- 2.70 (m, 2H), 2.63 (s, 3H), 2.51- 2.40 (m, 1H), 2.38-2.23 (m, 2H), 1.89-1.77 (m, 1H); 567.5 [M + H]⁺ 1.03 332

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2- ((3aS,6aS)-1- methylhexahydropyrr olo[3,4-b]pyrrole- 5(1H)-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.25 (s, 1H), 8.52 (s, 1H), 8.31 (s, 1H), 7.79 (s, 1H), 7.71 (d, J = 7.8 Hz, 1H), 7.54 (d, J = 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 7.21 (s, 1H), 6.71-6.62 (m, 2H), 6.52-6.41 (m, 2H), 5.72 (dd, J = 7.8, 4.2 Hz, 2H), 4.16 (td, J = 8.0, 4.1 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.51-3.41 (m, 2H), 3.23-3.17 (m, 1H), 3.08-3.01 (m, 1H), 2.99-2.88 (m, 1H), 2.88-2.75 (m, 3H), 2.64-2.54 (m, 3H), 2.47-2.38 (m, 1H), 2.38-2.22 (m, 2H), 1.88-1.75 (m, 1H); 567.5 [M + H] 1.04 333

N-(2-(4- cyclopropylpiperazine- 1-yl)-5-((6-((R)-3- (2,3-difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform- d) δ 8.90 (s, 1H), 8.59 (s, 1H), 8.37 (s, 1H), 7.40-7.30 (m, 1H), 7.12-7.00 (m, 2H), 6.96 (s, 1H), 6.82-6.73 (m, 2H), 6.42-6.33 (m, 1H), 6.33-6.23 (m, 1H), 5.93 (dd, J = 8.9, 4.6 Hz, 1H), 5.75 (dd, J = 9.9,1.7 Hz, 1H), 4.19-4.10 (m, 1H), 4.10-4.01 (m, 1H), 3.82 (s, 3H), 2.93-2.66 (m, 9H), 2.38- 2.25 (m, 1H), 1.76-1.70 (m, 1H), 0.57-0.42 (m, 4H); 578.4 [M + H]⁺ 1.17 334

N-(5-((6-((R)-3-(2,3- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- isopropylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform- d) δ 8.89 (s, 1H), 8.56 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.40- 7.31 (m, 1H), 7,12-7.01 (m, 2H), 7.00 (s, 1H), 6.83 (s, 1H), 6.75 (s, 1H), 6.37 (dd, J = 16.8, 1.7 Hz, 1H), 6.27 (dd, J = 17.0, 9.9 Hz, 1H), 5.93 (dd, J = 8.8, 4.6 Hz, 1H), 5.75 (dd, J = 9.9, 1.7 Hz, 1H), 4.19-4.12 (m, 1H), 4.12-4.01 (m, 1H), 3.83 (s, 3H), 2.99-2.91 (m, 4H), 2.90- 2.84 (m, 1H), 2.83-2.78 (m, 1H), 2.77-2.68 (m, 4H), 2.35- 2.26 (m, 1H), 1.13 (d, J = 6.5 Hz, 6H); 580.5 [M + H]⁺ 1.21 335

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-3,4- dimethylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 0.9 Hz, 1H), 7.40-7.31 (m, 1H), 7.12-6.98 (m, 2H), 6.93 (s, 1H), 6.75 (d, J = 2.4 Hz, 2H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.8, 4.6 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.19-4.11 (m, 1H), 4.10-4.03 (m, 1H), 3.85 (s, 3H), 3.10-3.02 (m, 2H), 3.02-2.95 (m, 1H), 2.94-2.79 (m, 3H), 2.78-2.66 (m, 2H), 2.43-2.34 (m, 2H), 2.32 (s, 3H), 2.32-2.27 (m, 2H), 2.21- 2.14(m, 1H), 2.11-2.05 (m,2H), 2.05- 1.98 (m, 1H), 1.70-1.60 (m, 2H), 1.10 (d, J = 6.1 Hz, 3H); 649.5 [M + H]⁺ 1.10 336

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-3,4- dimethylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.39-7.31 (m, 1H), 7.12-6.98 (m, 2H), 6.94 (s, 1H), 6.75 (d, J = 1.9 Hz, 2H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.19-4.10 (m, 1H), 4.10-4.01 (m, 1H), 3.85 (s, 3H), 3.10-3.02 (m, 2H), 3.02-2.95 (m, 1H), 2.95-2.81 (m, 3H), 2.78-2.65 (m, 2H), 2.45-2.35 (m, 2H), 2.33 (s, 3H), 2.32-2.27 (m, 2H), 2.24- 2.13 (m, 1H), 2.12-1.99 (m, 3H), 1.72- 1.61 (m, 2H), 1.11 (d, J = 6.2 Hz, 3H); 649.5 [M + H]⁺ 1.09 337

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- ((S)-2- methylmorpholino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.65 (s, 1H), 8.18 (d, J = 2.6 Hz, 2H), 7.13 (ddd, J = 8.2, 5.8, 3.2 Hz, 4H), 6.86 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.37 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.1,2.0 Hz, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (td, J = 7.9, 3.9 Hz, 1H), 3.87-3.74 (m, 9H), 2.87-2.70 (m, 4H), 1.78 (s, 2H), 1.11 (d, J = 6.2 Hz, 4H),; 553.3 [M + H]⁺ 1.51 338

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- ((R)-2- methylmorpholino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.71 (s, 1H), 8.18 (s, 1H), 7.13 (td, J = 7.7, 7.1,3.1 Hz, 3H), 6.86 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.2, 1.9 Hz, 1H), 5.56 (dd, J = 8.8, 5.0 Hz, 1H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.82 (d, J = 7.8 Hz, 8H), 2.93-2.71 (m, 4H), 2.30-2.19 (m, 1H), 1.91 (s, 1H), 1.10 (d, J = 6.2 Hz, 3H),; 553.4 [M + H]⁺ 1.52 339

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine- 1-yl)-5- ((6-((R)-3-(2,3- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.96 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.40- 7.24 (m, 2H), 7.20 (td, J = 8.1,4.6 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.80-5.68 (m, 2H), 3.85 (q, J = 8.0 Hz, 1H), 3.79 (s, 3H), 3.06 (d, J = 11.3 Hz, 3H), 2.88- 2.75 (m, 1H), 2.72-2.61 (m, 2H), 2.41-2.29 (m, 2H), 2.27-2.12 (m, 2H), 1.99 (s, 4H), 1.88-1.69 (m, 5H), 1.67 (s, 4H), 1.24 (s, 5H), 0.89-0.79 (m, 1H),; 663.5 [M + H]⁺ 1.21 340

N-(5-((6-((R)-3-(2,3- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)- 3-(dimethyl- amino)pyrolidine-1- yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.39- 7.24 (m, 3H), 7.20 (td, J = 8.0, 4.7 Hz, 2H), 6.82 (s, 1H), 6.64 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.73 (s, 1H), 3.84 (dd, J = 9.0, 7.2 Hz, 3H), 3.80 (s, 5H), 3.10 (d, J = 11.9 Hz, 2H), 3.01 (d, J = 11.4 Hz, 5H), 2.86-2.75 (m, 4H), 2.73-2.58 (m, 6H), 2.35-2.26 (m, 2H), 2.25-2.15 (m, 2H), 1.96-1.80 (m, 5H), 1.72-1.52 (m, 5H), 1.24 (s, 2H),; 649.5 [M + H]⁺ 1.10 341

N-(2-(4,4-difluoro- [1,4′-bipiperidine]-1′- yl)-5-((6-((R)-3-(2,3- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.00 (s, 1H), 8.67 (s, 1H), 8.25-8.09 (m, 2H), 7.42-7.26 (m, 2H), 7.26-7.11 (m, 1H), 6.83 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.39 (s, 1H), 6.23 (dd, J = 16.9, 1.9 Hz, 1H), 5.75 (s, 1H), 3.87 (t, J = 8.1 Hz, 1H), 3.81 (s, 3H), 3.37 (s, 8H), 3.14 (d, J = 10.2 Hz, 3H), 2.88-2.65 (m, 4H), 2.27-2.16 (m, 2H), 2.08 (d, J = 7.8 Hz, 2H), 1.91 (s, 7H),; 656.5 [M + H]⁺ 1.29 342

N-(5-((6-((R)-3-(2,3- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- propylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (S, 1H), 8.16 (s, 1H), 7.39- 7.25 (m, 3H), 7.20 (qd, J = 7.7, 6.7, 3.0 Hz, 2H), 6.82 (s, 1H), 6.65 (dd, J = 16.6, 10.1 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.77-5.71 (m, 2H), 4.16 (dt, J = 7.9, 4.0 Hz, 1H), 3.79 (s, 3H), 3.05 (d, J = 10.8 Hz, 4H), 2.97 (td, J = 7.1, 5.7 Hz, 2H), 2.88- 2.75 (m, 3H), 2.71-2.61 (m, 3H), 2.18 (dt, J = 14.4, 7.3 Hz, 8H), 2.09 (s, 2H), 1.84 (d, J = 12.0 Hz, 3H), 1.69 (d, J = 11.4 Hz, 2H), 1.23 (s, 3H),; 663.6 [M + H]⁺ 1.19 343

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.95 (s, 1H), 8.44 (s, 1H), 8.38 (s, 1H), 7.56 (d, J = 6.7 Hz, 1H), 6.98 (s, 1H), 6.82 (s, 2H), 6.74 (d, J = 14.8 Hz, 2H), 6.38 (d, J = 16.6 Hz, 1H), 6.31-6.22 (m, 1H), 5.87 (s, 1H), 5.76 (d, J = 11.1 Hz, 1H), 4.16-4.03 (m, 2H), 3.85 (s, 3H), 3.80 (s, 2H), 3.65 (s, 2H), 2.89 (s, 4H), 2.80 (d, J = 4.4 Hz, 1H), 2.28 (d, J = 16.7 Hz, 1H), 2.17 (s, 3H),; 580.5 [M + H]⁺ 1.40 344

N-(2-(4- cyclopropyl- piperazine- 1-yl)-5-((6-((R)-3- (2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.59 (s, 1H), 8.37 (s, 1H), 7.57 (d, J = 6.7 Hz, 1H), 6.94 (s, 1H), 6.82 (d, J = 17.0 Hz, 3H), 6.75 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 6.28 (dd, J = 17.0, 9.8 Hz, 1H), 5.88 (s, 1H), 5.75 (d, J = 9.8 Hz, 1H), 4.11 (d, J = 16.8 Hz, 2H), 3.82 (s, 3H), 2.88 (s, 4H), 2.82 (s, 2H), 2.29 (m, 2H), 1.74 (m, 2H), 0.96 (dd, 1H), 0.52 (d, J = 6.5 Hz, 2H), 0.47 (d, J = 3.4 Hz, 2H),; 578.4 [M + H]⁺ 1.21 345

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.55 (s, 1H), 8.36 (s, 1H), 7.56 (d, J = 6.9 Hz, 1H), 7.02 (s, 1H), 6.78 (d, J = 29.1 Hz, 4H), 6.39-6.22 (m, 2H), 5.88 (m, 1H), 5.74 (d, J = 10.6 Hz, 1H), 4.12 (s, 2H), 3.83 (s, 3H), 2.92 (s, 6H), 2.75 (s, 5H), 2.29 (s, 5H), 1.99 (t, 2H), 1.88 (d,2H), 1.65 (m, 2H),; 635.5 [M + H]⁺ 1.06 346

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- isopropylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.58 (s, 1H), 8.37 (s, 1H), 7.57 (d, J = 6.6 Hz, 1H), 6.94 (s, 1H), 6.88-6.74 (m, 4H), 6.37 (d, J = 16.5 Hz, 1H), 6.27 (dd, J = 16.9, 10.0 Hz, 1H), 5.88 (m, 1H), 5.75 (d, J = 9.9 Hz, 1H), 4.11 (d, d = 16.8 Hz, 2H), 3.83 (s, 3H), 2.93 (s, 4H), 2.72 (s, 6H), 2.25 (s, 1H), 1.59 (s, 6H),; 580.5 [M + H]⁺ 1.24 347

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((2- methoxyethyl)(methyl- )amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.13 (s, 1H), 8.99 (s, 1H), 8.37 (s, 1H), 7.57 (d, J = 6.7 Hz, 1H), 6.94 (s, 1H), 6.81 (m, J = 25.7 Hz, 4H), 6.40 (d, J = 18.7 Hz, 1H), 6.32 (d, J = 9.8 Hz, 1H), 5.86 (m, 1H), 5.69 (d, J = 11.7 Hz, 1H), 4.11 (t, J = 7.8 Hz, 2H), 3.85 (s, 3H), 3.47 (d, J = 4.9 Hz, 2H), 3.43 (s, 3H), 2.97 (m, 2H), 2.79 (s, 1H), 2.76 (s, 3H), 2.28 (s, 1H),; 541.4 [M + H]⁺ 1.55 348

N-(2-(4- cyclopentylpiperazine- 1-yl)-5-((6-((R)-3- (2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.59 (s, 1H), 8.37 (s, 1H), 7.57 (d, J = 6.7 Hz, 1H), 6.94 (s, 1H), 6.83 (m, 3H), 6.75 (s, 1H), 6.36 (d, J = 16.1 Hz, 1H), 6.29 (m, 1H), 5.86 (m, 1H), 5.75 (d, J = 10.0 Hz, 1H), 4.16- 4.04 (m, 2H), 3.82 (s, 3H), 2.94 (s, 4H), 2.81 (d, J = 8.0 Hz, 2H), 2.71 (s, 2H), 2.62-2.58 (m, 4H), 2.27 (m, 1H), 1.92 (m, 2H), 1.74 (m, 2H), 1.52-1.40 (m, 2H),; 606.5 [M + H]⁺ 1.25 349

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(2- (dimethylamino)ethyl)- piperazine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 5 8.90 (s, 1H), 8.54(S, 1H), 8.37 (s, 1H), 7.57 (m, 1H), 6.94 (s, 1H), 6.82 (m, 3H), 6.75 (s, 1H), 6.36 (d, J = 18.1 Hz, 1H), 6.30-6.21 (m, 1H), 5.89 (m, 1H), 5.75 (d, J = 11.3 Hz, 1H), 4.10 (d, J = 13.1 Hz, 2H), 3.84 (s, 3H), 2.94 (s, 4H), 2.82 (m, 3H), 2.66 (s, 6H), 2.37 (s, 5H), 2.27 (dt, J = 8.3, 4.4 Hz, 2H),; 609.5 [M + H]⁺ 1.14 350

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)- (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.11 (s, 1H), 8.96 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.57 (td, J = 8.6, 6.5 Hz, 1H), 6.96 (s, 1H), 6.87-6.82 (m, 1H), 6.80 (d, J = 1.3 Hz, 3H), 6.40 (dd, J = 17.0, 1.9 Hz, 1H), 6.28 (dd, J = 17.0, 10.0 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.68 (dd, J = 9.9, 1.9 Hz, 1H), 4.15-4.09 (m, 2H), 3.85 (s, 3H), 2.87 (q, J = 2.6 Hz, 2H), 2.72 (s, 3H), 2.32 (t, J = 5.5 Hz, 2H), 2.27 (s, 6H), 1.26 (s, 2H),; 554.5 [M + H] 1.24 351

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.56 (s, 1H), 8.37 (s, 1H), 7.61-7.53 (m, 1H), 6.95 (s, 1H), 6.87-6.78 (m, 3H), 6.75 (s, 1H), 6.40-6.33 (m, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.88 (dd, J = 8.6, 4.3 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.15-4.04 (m, 2H), 3.83 (s, 3H), 2.93 (d, J = 5.0 Hz, 4H), 2.52 (q, J = 7.2 Hz, 2H), 1.61 (s, 4H), 1.25 (s, 2H), 1.15 (t, J = 7.2 Hz, 3H),; 566.4 [M + H] 1.21 352

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.56 (td, J = 8.6, 6.5 Hz, 1H), 6.92 (s, 1H), 6.87-6.77 (m, 2H), 6.75 (d, J = 2.1 Hz, 2 H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.87 (dd, J = 8.6, 4.3 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.14-4.05 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.6 Hz, 2H), 2.80 (dt, J = 11.6, 3.6 Hz, 1H), 2.76-2.71 (m,2H), 2.52 (s, 2H), 2.32 (s, 3H), 2.17 (s, 1H), 2.08 (d, J = 12.5 Hz, 2H), 1.66 (d, J = 19.2 Hz, 8H), 1.26 (d, J = 2.2 Hz, 1H),; 635.5 [M + H] 1.14 353

N-(2-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)-5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.64 (s, 1H), 8.36 (s, 1H), 7.95 (s, 1H), 7.56 (d, J = 7.9 Hz, 1H), 6.90- 6.77 (m, 3H), 6.73 (s, 2H), 6.39 (d, J = 16.9 Hz, 1H), 6.28 (dd, J = 16.9, 10.0 Hz, 1H), 5.88 (dd, J = 8.7, 4.5 Hz, 1H), 5.76 (d, J = 10.0 Hz, 1H), 4.65 (s, 1H), 4.16-4.03 (m, 3H), 3.86 (s, 3H), 3.75 (d, J = 7.9 Hz, 1H), 3.46 (d, J = 10.1 Hz, 1H), 3.20 (d, J = 10.1 Hz, 1H), 2.85-2.75 (m, 1H), 2.33-2.23 (m, 1H), 2.17 (s, 1H), 2.09 (d, J = 10.0 Hz, 1H), 2.00 (d, J = 9.7 Hz, 1H),; 551.4 [M + H] 1.32 354

N-(5-((6-((R)-3- (2,4- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((1S,4S)-5-ethyl-2,5- diazabicyclo[2.2.1]heptane-2-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.58 (S, 1H), 8.34 (s, 1H), 7.93 (s, 1H), 7.55 (d, J = 13.5, 6.9 Hz, 1H), 6.87-6.77 (m, 3H), 6.67 (s, 2H), 6.38 (d, J = 16.8 Hz, 1H), 6.28 (dd, J = 17.0, 10.0 Hz, 1H), 5.87 (dd, J = 8.7, 4.3 Hz, 1H), 5.74 (d, J = 9.9 Hz, 1H), 4.10 (dd, J = 8.1,4.6 Hz, 1H), 4.03 (q, J = 7.9 Hz, 1H), 3.85 (s, 3H), 3.72 (s, 1H), 3.58 (s, 1H), 3.45 (d, J = 9.6 Hz, 1H), 3.11 (d, J = 9.7 Hz, 1H), 2.82 (s, 2H), 2.31- 2.22 (m, 1H), 2.17(s, 1H), 1.92 (t, J = 11.4 Hz, 2H), 1.26 (s, 2H), 1.12 (t, J = 7.1 Hz, 3H),; 578.5 [M + H] 1.16 355

N-(2-(4-(6- azaspiro[2.5]octan-6- yl)piperidine-1- yl)-5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.01 (s, 1H), 8.17 (d, J = 12.9 Hz, 2H), 7.56-7.48 (m, 1H), 7.44 (t, J = 7.1 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.84 (s, 1H), 6.63 (dd, J = 16.9, 10.1 Hz, 1H), 6.36 (s, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 1H), 5.77-5.70 (m, 2H), 4.24-4.14 (m, 1H), 3.88 (q, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.51 (d, J = 11.5 Hz, 2H), 3.17 (d, J = 11.3 Hz, 2H), 3.08 (q, J = 11.4 Hz, 2H), 2.88-2.81 (m, 1H), 2.76 (t, J = 12.0 Hz, 2H), 2.26-2.16 (m, 2H), 2.13 (d, J = 14.6 Hz, 4H), 1.98 (d, J = 12.0 Hz, 2H), 1.23 (s, 1H), 1.17 (d, J = 13.8 Hz, 2H), 0.51-0.36 (m, 4H),; 662.5 [M + H]⁺ 1.40 356

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((S)-2- methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.03 (s, 1H), 8.68 (s, 1H), 8.17 (8, 1H), 7.56-7.47 (m, 1H), 7.47-7.39 (m, 1H), 7.23 (t, J = 7.8 Hz, 1H), 6.84 (s, 1H), 6.59 (s, 1H), 6.39 (s, 1H), 6.23 (dd, J = 17.1, 1.9 Hz, 1H), 5.73 (dd, J = 8.9, 4.9 Hz, 2H), 4.18 (td, J = 8.0, 3.7 Hz, 1H), 4.05 (d, J = 12.7 Hz, 1H), 3.87 (t, J = 8.1 Hz, 1H), 3.82 (s, 3H), 3.62 (td, J = 6.7, 4.0 Hz, 1H), 3.14 (qd, J = 7.4, 4.1 Hz, 4H), 2.81 (dd, J = 8.1, 4.1 Hz, 2H), 2.78-2.68 (m, 2H), 2.25- 2.17 (m, 1H), 2.15 (d,J = 9.8 HZ, 2H), 1.91 (s, 3H), 1.25 (q, J = 7.2, 6.7 Hz, 4H), 1.18 (d, J = 6.2 Hz, 2H),; 652.4 [M + H]⁺ 1.32 357

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((R)-2- methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.64 (s, 1H), 8.15(s, 1H), 7.51 (t, J = 7.5 Hz, 1H), 7.45 (t, J = 7.1 Hz, 1H), 7.22 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.64 (s, 1H), 6.36 (s, 1H), 6.21 (d, J = 17.0 Hz, 1H), 5.77-5.71 (m, 2H), 4.17 (dt, J = 9.1, 4.5 Hz, 1H), 3.86 (q, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.06 (s, 3H), 2.89-2.75 (m, 3H), 2.18 (dt, J = 12.8, 6.9 Hz, 4H), 1.91 (s, 3H), 1.87 (s, 3H), 1.73 (d, J = 14.7 Hz, 2H), 1.07 (d, J = 6.5 Hz, 4H),; 652.4 [M + H]⁺ 1.32 358

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- cyclopropyl-1,4- diazepane-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.96 (s, 1H), 8.67 (s, 1H), 8.16 (s, 1H), 7.57-7.47 (m, 1H), 7.47-7.40 (m, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.66 (dd, J = 16.8, 10.1 Hz, 1H), 6.39 (s, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.74 (dt, J = 8.7, 4.8 Hz, 2H), 4.18 (td, J = 8.0, 3.7 Hz, 1H), 3.87 (t, J = 8.1 Hz, 1H), 3.81 (s, 4H), 3.13(d, J = 11.5 Hz, 3H), 3.05 (s, 2H), 2.88 (s, 2H), 2.86-2.78 (m, 2H), 2.74 (t, J = 11.6 Hz, 2H), 2.26-2.14 (m, 2H), 2.05 (d, J = 14.8 Hz, 3H), 1.95 (s, 2H), 1.91 (s, 5H), 0.48 (d, J = 30.7 Hz, 3H),; 691.5 [M + H]⁺ 1.20 359

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethy l)(methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.05 (s, 1H), 8.62 (s, 1H), 8.47 (s, 1H), 8.17 (s, 1H), 7.48-7.27 (m, 4H), 6.99 (s, 1H), 6.46-6.31 (m, 2H), 6.22 (dd, J = 16.9, 2.2 Hz, 1H), 5.81-5.65 (m, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.80 (s, 3H), 2.87 (t, J = 5.8 Hz, 2H), 2.78 (dtd, J = 12.0, 7.8, 3.7 Hz, 1H), 2.71 (s, 3H), 2.33 (s, 2H), 2.21 (s, 8H); 552.4 [M + H]⁺ 1.21 360

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.62 (s, 1H), 8.14 (d, J = 13.7 Hz, 2H), 7.48-7.30 (m, 4H), 6.84 (s, 1H), 6.59 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (dt, J = 17.0, δ 9 Hz, 1H), 5.72 (d, J = 10.6 Hz, 1H), 5.54 (dd, J = 8.6, 5.1 Hz, 1H), 4.14 (td, J = 7.9, 3.7 Hz, 1H), 3.88-3.76 (m, 4H), 2.88 (t, J = 4.8 Hz, 4H), 2.77 (qq, J = 7.7, 3.7 Hz, 1H), 2.55 (d, J = 10.5 Hz, 3H), 2.36-2.16 (m, 5H); 550.4 [M + H]⁺ 1.16 361

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.61 (s, 1H), 8.15 (d, J = 6.5 Hz, 2H), 7.47-7.30 (m, 4H), 6.83 (s, 1H), 6.65 (dd, J = 17.0, 10.1 Hz, 1H), 6.35 (s, 1H), 6.23 (ddd, J = 17.0, 12.9, 2.0 Hz, 1H), 5.77-5.68 (m, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.80 (s, 4H), 3.09-3.03 (m, 2H), 2.77 (dtd, J = 12.0, 7.9, 3.7 Hz, 1H), 2.71-2.63 (m, 2H), 2.30 (s, 6H), 1.86 (d, J = 11.5 Hz, 2H), 1.78-1.64 (m, 2H), 1.13-1.02 (m, 2H); 578.4 [M + H]⁺ 1.18 362

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep tane-5-yl)piperidine- 1-yl)-5-((6-((R)-3-(2- fluoro-3- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.46 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.44-7.33 (m, 1H), 7.11- 7.03 (m, 1H), 6.99 (t, J = 7.6 Hz, 1H), 6.92 (s, 1H), 6.74 (d, J = 8.9 Hz, 2H), 6.41-6.16 (m, 2H), 5.91 (dd, J = 8.8, 4.4 Hz, 1H), 5.73 (dd, J = 9.8, 1.6 Hz, 1H), 4.47 (s, 1H), 4.16-4.01 (m, 3H), 3.85 (s, 3H), 3.66 (dq, J = 13.3, 7.3, 6.6 Hz, 2H), 3.08 (dd, J = 15.6, 8.1 Hz, 3H), 2.79 (dtdd, J = 20.3, 11.7, 8.3, 3.4 Hz, 4H), 2.36- 2.22 (m, 4H), 1.97 (d, J = 12.6 Hz, 2H), 1.55-1.41 (m, 5H),; 630.5 [M + H]⁺ 1.15 363

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 5 8.95 (s, 1H), 8.44 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.36 (t, J = 7.9 Hz, 1H), 7.29 (dd, J = 10.1,2.0 Hz, 1H), 7.19 (dd, J = 8.4, 2.0 Hz, 1H), 6.98 (s, 1H), 6.72 (s, 2H), 6.38 (dd, J = 16.9, 1.5 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.77 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.16 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.80 (s, 1H), 3.65 (t, J = 5.0 Hz, 2H), 2.88 (td, J = 6.3, 3.2 Hz, 4H), 2.77 (dtd, J = 12.2, 8.0, 4.2 Hz, 1H), 2.34 (dtd, J = 12.5, 8.1,4.6 Hz, 1H), 2.17 (s, 3H), 1.66-1.59 (m, 1H),; 596.3 [M + H]⁺ 1.44 364

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- cyclopropylpiperazine- l-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 5 8.90 (s, 1H), 8.60 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.35 (t, J = 7.9 Hz, 1H), 7.29 (dd, J = 10.2, 2.1 Hz, 1H), 7.19 (dd, J = 8.3, 2.0 Hz, 1H), 6.94 (s, 1H), 6.79 (s, 1H), 6.37 (dd, J = 16.9, 1.7 Hz, 1H), 6.28 (dd, J = 16.9, 9.8 Hz, 1H), 5.76 (dd, J = 9.8, 1.7 Hz, 1H), 5.66 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.81 (s, 3H), 2.92-2.71 (m, 9H), 2.33 (dtd, J = 12.5, 8.1,4.6 Hz, 1H), 1.72 (tt, J = 6.6, 3.7 Hz, 1H), 0.57-0.38 (m, 4H),; 594.4 [M + H]⁺ 1.28 365

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 5 8.71 (s, 1H), 8.35 (s, 1H), 8.16 (S, 1H), 7.35 (t, J = 7.9 Hz, 1H), 7.29 (dd,J = 10.2, 2.0 Hz, 1H), 7.19 (dd, J = 8.3, 2.0 Hz, 1H), 6.91 (s, 1H), 6.77 (s, 1H), 6.67 (s, 1H), 6.45-6.20 (m, 2H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.14 (td, J = 7.9, 4.2 Hz, 1H), 4.04 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.76 (t, J = 4.7 Hz, 3H), 3.24-2.94 (m, 4H), 2.76 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.64-2.42 (m, 4H), 2.33 (dtd, J = 12.3, 8.0, 4.5 Hz, 1H), 2.26-2.13 (m, 1H), 2.02 (s, 3H),; 624.4 [M + H]⁺ 1.23 366

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide 566.5 [M + H]⁺ 1.06 367

N-(5-((6-((S)-3-(2,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 3 7.99 (s, 1H), 7.55 (s, 1H), 7.25- 7.14 (m, 1H), 6.83 (t, J = 8.4 Hz, 2H), 6.52 (s, 1H), 6.41 (dd, J = 17.0, 10.2 Hz, 1H), 6.23 (d, J = 16.3 Hz, 1H), 6.11 (s, 1H), 5.63 (dd, J = 19.9, 9.7 Hz, 2H), 4.19 (dd, J = 7.7, 6.1 Hz, 1H), 3.80- 3.74 (m, 1H), 3.71 (s, 3H), 3.64 (t, J = 4.0 Hz, 4H), 3.45 (ddd, J = 17.1, 11.1,5.4 Hz, 2H), 3.21 (dt, J = 3.2, 1.6 Hz, 3H), 3.17 (d, J = 7.1 Hz, 2H), 2.99-2.92 (m, 1H), 2.70- 2.46 (m, 5H), 2.39 (dt, J = 11.7, 7.7 Hz, 2H), 2.12 (d, J = 4.8 Hz, 1H), 1.88 (s, 5H); 608.5 [M + H]⁺ 1.05 368

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)-3- morpholinopyrolidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.09 (s, 1H), 7.64 (s, 1H), 7.34-7.25 (m, 1H), 6.93 (t, J = 8.4 Hz, 2H), 6.62 (s, 1H), 6.51 (dd, J = 17.0, 10.2 Hz, 1H), 6.37-6.29 (m, 1H), 6.22 (s, 1H), 5.73 (dd, J = 17.8, 9.8 Hz, 2H), 4.29 (dd, J = 7.9, 5.9 Hz, 1H), 3.87 (dd, J = 11.6, 6.3 Hz, 2H), 3.82 (s, 3H), 3.72 (t, J = 4.5 Hz, 4H), 3.55 (ddd, J = 17.1, 11.1,5.4 Hz, 1H), 3.32-3.29 (m, 2H), 3.24 (dd, J = 14.3, 7.3 Hz, 2H), 3.02-2.90 (m, 1H), 2.75 (dt, J = 9.0, 8.2 Hz, 1H), 2.67-2.45 (m, 4H), 2.25- 2.14 (m, 1H), 1.97 (s, 4H); 608.5 [M + H]⁺ 1.07 369

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- [1,4′-bipiperidine]-1- yl)-4- methoxyphenyl)acrylamide 663.6 [M + H]⁺ 0.99 370

N-(5-((6-((R)- 3-(3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((3S,5R)-4- ethyl-3,5- dimethylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.80 (s, 1H), 8.42 (s, 1H), 8.32 (s, 1H), 7.52 (dd, J = 7.0, 1.8 Hz, 1H), 7.37 (s, 1H), 7.34-7.29 (m, 1H), 7.10 (t, J = 8.7 Hz, 1H), 6.74 (s, 1H), 6.67 (s, 1H), 6.31 (dt, J = 16.9, 13.1 Hz, 2H), 5.75 (d, J = 10.8 Hz, 1H), 5.63 (dd, J = 8.5, 4.6 Hz, 1H), 4.15 (td, J = 7.9, 4.2 Hz, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.15- 2.92 (m, 8H), 2.81-2.65 (m, 3H), 2.54- 2.38 (m, 3H), 2.38-2.26 (m, 1H), 2.08 (d, J = 12.1 Hz, 2H), 2.04 (s, 4H), 1.72 (dd, J = 21.0, 11.5 Hz, 2H), 1.22 (d, J = 6.1 Hz, 6H), 1.02 (t, J = 7.1 Hz, 3H); 693.6 [M + H]⁺ 1.22 371

N-(5-((6-((R)- 3-(4-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)- ethyl)(methyl) amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.87 (s, 1H), 8.93 (s, 1H), 8.34 (s, 1H), 7.54 (t, J = 8.3 Hz, 1H), 7.18 (S, 1H), 7.13-7.06 (m, 2H), 6.78 (d, J = 2.2 Hz, 2H), 6.40 (s, 1H), 6.39 (s, 1H), 5.87 (dd, J = 8.8, 4.4 Hz, 1H), 5.68 (t, J = 5.9 Hz, 1H), 4.11 (td, J = 8.0, 6.5, 3.1 Hz, 2H), 3.85 (s, 3H), 2.93 (dt, J = 5.6, 2.9 Hz, 2H), 2.86-2.79 (m, 1H), 2.70 (s, 3H), 2.44 (t, J = 5.7 Hz, 2H), 2.33 (s, 6H), 2.29-2.24 (m, 1H); 570.4[M + H]⁺ 1.33 372

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (s, 1H), 8.15 (d, J = 5.0 Hz, 1H), 7.52 (t, J = 8.2 Hz, 1H), 7.24-7.16 (m, 2H), 6.92 (d, J = 13.1 Hz, 1H), 6.53 (dd, J = 16.9, 10.2 Hz, 1H), 6.48 (d, J = 3.7 Hz, 1H), 6.35 (d, J = 16.8 Hz, 1H), 5.80 (d, J = 10.2 Hz, 1H), 5.73 (dd, J = 8.7, 4.7 Hz, 1H), 4.13 (td, J = 8.0, 4.2 Hz, 1H), 3.99 (d, J = 7.8 Hz, 1H), 3.88 (d, J = 2.3 Hz, 3H), 3.04 (t, J = 4.9 Hz, 4H), 2.99-2.88 (m, 4H), 2.82 (ddd, J = 12.5, 8.2, 4.4 Hz, 1H), 2.57 (d, J = 7.6 Hz, 3H), 2.28-2.21 (m, 1H); 568.4[M + H]⁺ 1.29 373

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.89 (s, 1H), 9.23 (d, J = 30.9 Hz, 1H), 8.26 (s, 1H), 7.95 (d, J = 12.8 Hz, 1H), 7.51- 7.40 (m, 2H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.88 (d, J = 5.6 Hz, 1H), 6.59 (td, J = 15.9, 10.2 Hz, 1H), 6.24 (dt, J = 17.0, 2.4 Hz, 2H), 5.78-5.62 (m, 2H), 4.72- 4.54 (m, 3H), 3.82 (d, J = 1.3 Hz, 3H), 3.70 (d, J = 9.7 Hz, 1H), 3.37 (d, J = 4.8 Hz, 4H), 2.95-2.66 (m, 4H), 2.34-2.17 (m, 3H), 2.08 (d, J = 11.5 Hz, 3H),; 650.3 [M + H]⁺ 1.38 374

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino)- piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.36 (s, 1H), 9.28 (s, 1H), 8.34 (s, 1H), 7.86 (s, 1H), 7.50 (dd, J = 10.3, 2.1 Hz, 1H), 7.38 (t, J = 8.3 Hz, 1H), 7.31 (dd, J = 8.4, 2.1 Hz, 1H), 6.94 (s, 1H), 6.72 (dd, J = 17.0, 10.2 Hz, 1H), 6.26 (dd, J = 17.0, 1.9 Hz, 1H), 6.15 (s, 1H), 5.77 (dd, J = 10.1, 1.9 Hz, 1H), 5.67 (dd, J = 8.6, 5.6 Hz, 1H), 4.36-4.31 (m, 1H), 4.17 (ddd, J = 9.8, 6.8, 3.4 Hz, 2H), 4.08 (d, J = 7.7 Hz, 1H), 3.82 (s, 3H), 3.36 (dd, J = 10.9, 5.1 Hz, 5H), 2.95 (dd, J = 7.9, 4.1 Hz, 1H), 2.81 (s, 2H), 2.70 (d, J = 10.6 Hz, 2H), 2.31-2.22 (m, 3H), 2.16-2.05 (m, 2H), 1.17 (d, J = 6.3 Hz, 6H),; 666.3 [M + H]* 1.32 375

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(4-chloro- 2-fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.67 (s, 1H), 9.15 (s, 1H), 8.27 (s, 1H), 7.96 (s, 1H), 7.52-7.37 (m, 2H), 7.30 (dd, J = 8.3, 2.1 Hz, 1H), 6.89 (s, 1H), 6.67 (dd, J = 17.0, 10.2 Hz, 1H), 6.28-6.15 (m, 2H), 5.80-5.63 (m, 2H), 4.50 (d, J = 14.0 Hz, 1H), 4.28 (s, 1H), 4.01 (s, 2H), 3.81 (s, 3H), 3.49 (s, 3H), 3.34 (s, 2H), 3.18 (d, J = 10.4 Hz, 4H), 3.05-2.88 (m, 3H), 2.77 (s, 2H), 2.17 (s, 3H), 2.06 (s, 3H),; 679.3 [M + H]⁺ 1.28 376

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.67 (s, 1H), 8.35 (s, 1H), 8.14 (s, 1H), 7.56 (q, J = 8.1 Hz, 1H), 6.88-6.77 (m, 3H), 6.74 (d, J = 11.0 Hz, 2H), 6.41-6.35 (m, 1H), 6.28 (dd, J = 16.9, 9.8 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.73 (dd, J = 9.9, 1.8 Hz, 1H), 4.15-4.04 (m, 2H), 3.84 (s, 3H), 3.19 (q, J = 7.9 Hz, 1H), 3.11 (d, J = 7.0 Hz, 2H), 2.90-2.75 (m, 2H), 2.30 (s, 6H), 1.62 (s, 4H),; 566.4[M + H] 1.15 377

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(5-methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.11 (s, 1H), 8.45 (s, 1H), 7.56 (q, J = 8.0 Hz, 1H), 7.21 (s, 1H), 7.14 (d, J = 1.4 Hz, 1H), 6.95 (d, J = 1.4 Hz, 1H), 6.84 (dd, J = 19.1, 9.0 Hz, 3H), 6.75 (s, 1H), 6.68 (s, 1H), 6.27 (d, J = 16.9 Hz, 1H), 6.03 (dd, J = 16.8, 10.3 Hz, 1H), 5.89 (dd, J = 8.7, 4.7 Hz, 1H), 5.71 (d, J = 10.3 Hz, 1H), 4.17 (dt, J = 7.9, 3.9 Hz, 1H), 4.06 (q, J = 7.9 Hz, 1H), 3.90 (s, 3H), 2.25 (s, 2H), 2.17 (s, 3H),; 534.4[M + H] 1.26 378

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.44 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.56 (td, J = 8.6, 6.5 Hz, 1H), 6.93 (s, 1H), 6.87-6.78 (m, 2H), 6.75 (d, J = 1.8 Hz, 2H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.16-4.04 (m, 2H), 3.85 (s, 3H), 3.78 (t, J = 4.7 Hz, 4H), 3.07 (d, J = 11.6 Hz, 2H), 2.80 (dt, J = 11.7, 3.7 Hz, 1H), 2.77-2.67 (m, 2H), 2.62 (t, J = 4.7 Hz, 4H), 2.29 (ddd, J = 12.5, 9.8, 5.8 Hz, 2H), 2.08 (d, J = 12.5 Hz, 2H), 1.70-1.61 (m, 2H),; 622.5[M + H] 1.14 379

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(tetrahydro-2H- pyran-4-yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.54 (s, 1H), 8.37 (s, 1H), 7.61-7.53 (m, 1H), 6.96 (s, 1H), 6.87- 6.78 (m, 3H), 6.75 (s, 1H), 6.40- 6.34 (m, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.88 (dd, 8.6, 4.3 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.14- 4.04 (m, 4H), 3.83 (s, 3H), 3.42 (dd, J = 12.7, 10.7 Hz, 2H), 2.93 (q, J = 3.9 Hz, 4H), 2.83-2.74 (m, 4H), 2.52 (ddd, J = 11.3, 7.5, 3.8 Hz, 1H), 1.84 (d, J = 12.6 Hz, 2H), 1.66 (dd, J = 12.1,4.4 Hz, 4H),; 635.6[M + H] 1.20 380

N-(2-(4- (cyclopropylmethyl)pip- erazine-1-yl)-5-((6- ((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.57 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.60-7.53 (m, 1H), 6.94 (s, 1H), 6.87-6.75 (m, 4H), 6.40- 6.33 (m, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.14- 4.05 (m, 2H), 3.84 (s, 3H), 2.94 (d, J = 5.1 Hz, 4H), 2.80 (ddd, J = 12.8, 8.4, 4.7 Hz, 2H), 2.36 (d, J = 6.6 Hz, 2H), 2.28 (dq, J = 12.0, 3.7 Hz, 1H), 2.17 (s, 4H), 0.60-0.54 (m, 2H), 0.16 (q, J = 5.0 Hz, 2H),; 592.5[M + H] 1.20 381

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.48 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 7.61-7.53 (m, 1H), 6.93 (s, 1H), 6.82 (dddd, J = 12.9, 11.2, 8.6, 2.6 Hz, 2H), 6.76 (d, J = 5.3 Hz, 2H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.73 (dd, J = 10.1, 1.5 Hz, 1H), 4.44 (s, 1H), 4.09 (q, J = 7.9, 7.3 Hz, 3H), 3.86 (s, 3H), 3.77 (d, J = 2.2 Hz, 1H), 3.66 (dd, J = 8.1, 1.6 Hz, 1H), 3.14 (dd, J = 9.9,1.8 Hz, 1H), 3.03 (dd, J = 12.0, 3.7 Hz, 2H), 2.78 (ddd, J = 12.0, 8.4, 3.3 Hz, 2H), 2.62- 2.55 (m, 1H), 2.50 (d, J = 9.9 Hz, 1H), 2.27 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.04 (d, J = 13.1 Hz, 1H), 2.00-1.89 (m, 2H), 1.83 (d, J = 9.8 Hz, 1H), 1.65 (dd, J = 22.6, 11.4 Hz, 3H),; 634.5[M + H] 1.15 382

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((1S,4S)-5-ethyl-2,5- diazabicyclo[2.2.1]heptane-2-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.47 (s, 1H), 8.37 (s, 1H), 7.56 (q, J = 8.2 Hz, 1H), 6.92 (s, 1H), 6.87-6.77 (m, 2H), 6.75 (d, J = 3.4 Hz, 2H), 6.39-6.31 (m, 1H), 6.29- 6.19 (m, 1H), 5.87 (dd, J = 8.6, 4.3 Hz, 1H), 5.73 (d, J = 10.1 Hz, 1H), 4.15- 4.05 (m, 2H), 3.85 (s, 3H), 3.66 (s, 1H), 3.02 (s, 3H), 2.85-2.73 (m, 4H), 2.30-2.23 (m, 1H), 2.17 (s, 3H), 2.06 (d, J = 12.8 Hz, 1H), 1.90 (s, 2H), 1.69 (d, J = 31.5 Hz, 4H), 1.28 (d, J = 18.2 Hz, 3H), 1.17 (s, 2H),; 661.5[M + H] 1.07 383

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.49 (s, 1H), 8.38 (s, 1H), 7.56 (d, J = 6.7 Hz, 1H), 6.97 (s, 1H), 6.79 (m, 4H), 6.36 (d, J = 16.2 Hz, 2H), 6.27 (m, 1H), 5.88 (m, 1H), 5.74 (d, J = 11.3 Hz, 1H), 4.69 (td, J = 21.8 Hz, 4H), 4.08 (m, 2H), 3.85 (s, 3H), 3.61 (m, 1H), 2.96 (s, 4H), 2.81 (m, 1H), 2.54 (s, 4H), 2.28 (s, 1H),; 594.4 [M + H]⁺ 1.16 384

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.49 (s, 1H), 8.37 (s, 1H), 7.57 (m, 1H), 6.92 (s, 1H), 6.79 (m, 4H), 6.35 (d, J = 15.9 Hz, 1H), 6.27 (m, 1H), 5.87 (m, 1H), 5.74 (d, J = 11.3 Hz, 1H), 4.08 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.6 Hz, 2H), 2.80 (m, 1H), 2.73 (m, 2H), 2.36 (s, 6H), 2.27 (m, 2H), 2.06 (d, J = 13.9 Hz, 2H), 1.66 (d, J = 9.9 Hz, 2H),; 580.5 [M + H]⁺ 1.19 385

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((1R,4R)-5-ethyl-2,5- diazabicyclo[2.2.1]hept- ane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.56 (s, 1H), 8.34 (s, 1H), 7.96 (s, 1H), 7.56 (m, 1H), 6.85 (m, 3H), 6.69 (s, 2H), 6.38 (m, 1H), 6.31 (m, 1H), 5.89 (m, 1H), 5.74 (d,J = 10.2 Hz, 1H), 4.15-4.02 (m, 2H), 3.85 (s, 3H), 3.73 (s, 1H), 3.57 (s, 1H), 3.49 (d, 1H), 3.06 (d, J = 9.4 Hz, 1H), 2.75 (m, 4H), 2.60 (m, 1H), 2.27 (m, 1H), 1.91 (q, J = 10.6, 10.0 Hz, 2H), 1.13 (t, J = 7.1 Hz, 3H),; 578.4 [M + H]⁺ 1.14 386

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.96 (s, 1H), 8.47-8.38 (m, 1H), 7.61- 7.52 (m, 1H), 7.51-7.45 (m, 1H), 7.15 (d, J = 8.0 Hz, 1H), 6.90-6.72 (m, 6H), 6.44-6.25 (m, 1H), 6.13 (dd, J = 16.8, 10.3 Hz, 1H), 5.88 (dd, J = 8.6, 4.5 Hz, 1H), 5.80-5.67 (m, 1H), 4.17 (td, J = 8.0, 4.3 Hz, 1H), 4.09- 4.03 (m, 1H), 3.90 (s, 3H), 2.90-2.77 (m, 1H), 2.30 (s, 3H), 1.82 (p, J = 7.0 Hz, 1H),; 534.3 [M + H]⁺ 1.29 387

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-((2- methoxyethyl)(methyl)- amino)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.62-7.51 (m, 1H), 6.94 (s, 1H), 6.89-6.71 (m, 4H), 6.40-6.33 (m, 1H), 6.31-6.22 (m, 1H), 5.90- 5.85 (m, 1H), 5.75 (d, J = 10.1 Hz, 1H), 4.16-4.03 (m, 2H), 3.85 (s, 3H), 3.59-3.51 (m, 2H), 3.39 (s, 3H), 3.35-3.26 (m, 1H), 3.07 (d, J = 11.1 Hz, 2H), 2.87-2.67 (m, 7H), 2.61 (s, 2H), 2.44 (s, 4H),; 624.5 [M + H]⁺ 1.19 388

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-((R)-3- methylmorpholino)pip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.79 (s, 1H), 8.44 (s, 1H), 8.31 (s, 1H), 7.78 (s, 1H), 7.70 (d, J = 7.9 Hz, 1H), 7.58- 7.50 (m, 2H), 7.45 (t, J = 7.8 Hz, 1H), 6.77 (s, 1H), 6.68 (s, 1H), 6.40- 6.23 (m, 2H), 5.76 (dd, J = 9.9, 1.5 Hz, 1H), 5.71 (dd, J = 8.7, 4.6 Hz, 1H), 4.16 (td, J = 8.0, 4.1 Hz, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.89-3.81 (m, 4H), 3.78-3.70 (m, 2H), 3.47- 3.38 (m, 1H), 3.13-3.03 (m, 2H), 2.98-2.89 (m, 2H), 2.86-2.64 (m, 5H), 2.39-2.29 (m, 1H), 1.98-1.79 (m, 3H), 1.74-1.61 (m, 1H), 1.08 (d, J = 6.4 Hz, 3H),; 625.5[M + H]⁺ 1.08 389

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl3) δ 8.87 (s, 1H), 8.49 (S, 1H), 8.36 (s, 1H), 7.79 (s, 1H), 7.71 (d, J = 7.9 Hz, 1H), 7.55 (d, 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.96 (s, 1H), 6.77 (s, 1H), 6.74 (S, 1H), 6.39-6.20 (s, 2H), 5.77- 5.69 (m, 2H), 4.44 (s, 1H), 4.17 (td, J = 8.1,4.2 Hz, 1H), 4.12-4.05 (m, 2H), 3.86 (s, 3H), 3.81-3.74 (m, 1H), 3.69-3.64 (m, 1H), 3.17-3.11 (m, 1H), 3.07-2.99 (m, 2H), 2.86- 2.71 (m, 3H), 2.63-2.54 (m, 1H), 2.53-2.47 (m, 1H), 2.39-2.29 (m, 1H), 2.09-2.00 (m, 1H), 1.99-1.90 (m, 2H), 1.86-1.80 (m, 1H), 1.74- 1.62 (m, 2H); 623.5[M + H]⁺ 1.05 390

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- hydroxypiperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.35 (s, 1H), 7.79 (s, 1H), 7.71 (d, J = 7.8 Hz, 1H), 7.55 (d, 7.7 Hz, 1H), 7.45 (t, J = 7.7 Hz, 1H), 7.04 (s, 1H), 6.78 (s, 1H), 6.73 (s, 1H), 6.30 (dt, J = 16.9, 13.4 Hz, 2H), 5.78- 5.70 (m, 2H), 4.17 (td, J = 7.9, 4.1 Hz, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.98-3.91 (m, 1H), 3.85 (s, 3H), 3.10-3.01 (m, 2H), 2.86-2.72 (m, 3H), 2.40-2.29 (m, 1H), 2.11-2.03 (m, 2H), 1.81-1.73 (m, 2H); 542.4[M + H]⁺ 1.21 391

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.50 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 7.79 (d, 1.8 Hz, 1H), 7.75-7.67 (m, 1H), 7.58-7.51 (m, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.98 (s, 1H), 6.82 (s, 1H), 6.74 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.79-5.69 (m, 2H), 4.69 (dt, J = 21.4, 6.3 Hz, 4H), 4.22-4.14 (m, 1H), 4.14-4.03 (m, 1H), 3.85 (s, 3H), 3.66-3.55 (m, 1H), 3.02-2.91 (m, 4H), 2.88-2.75 (m, 1H), 2.63-2.43 (m, 4H), 2.41- 2.28 (m, 1H); 583.4[M + H]⁺ 1.09 392

N-(5-((6-((R)-3-(3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)- (methyl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.12 (s, 1H), 8.96 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.79 (d, J = 1.8 Hz, 1H), 7.72 (dt, J = 8.0, 1.7 Hz, 1H), 7.54 (dt, J = 7.6, 1.5 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.98 (s, 1H), 6.81- 6.78 (m, 2H), 6.40 (dd, J = 17.0, 2.0 Hz, 1H), 6.34-6.22 (m, 1H), 5.74 (dd, J = 8.8, 4.5 Hz, 1H), 5.72-5.65 (m, 1H), 4.19-4.10 (m, 2H), 3.85 (s, 3H), 2.91-2.86 (m, 2H), 2.84- 2.78 (m, 1H), 2.72 (s, 3H), 2.37- 2.31 (m, 3H), 2.29 (s, 6H),; 543.5[M + H]⁺ 1.08 393

N-(5-((6-((R)-3-(3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.54 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.79 (d, J = 1.8 Hz, 1H), 7.71 (dt, J = 7.8, 1.7 Hz, 1H), 7.55 (dt, J = 7.7, 1.5 Hz, 1H), 7.45 (t, J = 7.7 Hz, 1H), 6.99 (s, 1H), 6.80 (s, 1H), 6.73 (s, 1H), 6.37 (dd, J = 17.1, 1.6 Hz, 1H), 6.27 (dd, J = 17.0, 9.9 Hz, 1H), 5.79-5.68 (m, 2H), 4.22-4.13 (m, 1H), 4.13-4.03 (m, 1H), 3.84 (s, 3H), 2.96-2.89 (m, 4H), 2.86-2.77 (m, 1H), 2.73- 2.53 (m, 4H), 2.40 (s, 3H), 2.37- 2.28 (m, 1H); 541.5[M + H]⁺ 1.02 394

N-(5-((6-((R)-3-(3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)pip- ericline-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.46 (s, 1H), 8.36 (d, J = 0.9 Hz, 1H), 7.79 (d, J = 1.9 Hz, 1H), 7.74-7.67 (m, 1H), 7.55 (dt, J = 7.8, 1.5 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.95 (s, 1H), 6.75 (d, J = 8.4 Hz, 2H), 6.36 (dd, J = 17.0, 1.7 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.79-5.68 (m, 2H), 4.22- 4.14 (m, 1H), 4.14-4.03 (m, 1H), 3.85 (s, 3H), 3.12-3.05 (m, 2H), 2.86-2.77 (m, 1H), 2.79-2.70 (m, 2H), 2.45 (s, 6H), 2.37 (dd, J = 8.1, 4.5 Hz, 1H), 2.34-2.29 (m, 1H), 2.15-2.07 (m, 2H), 1.80-1.68 (m, 2H); 569.5[M + H]⁺ 1.05 395

N-(5-((6-((R)-3-(3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyr olidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 8.67 (s, 1H), 8.35 (s, 1H), 8.17(s, 1H), 7.79 (d, J = 1.7 Hz, 1H), 7.71 (d, J = 7.8 Hz, 1H), 7.55 (dt, J = 7.7, 1.5 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.90 (s, 1H), 6.76(S, 1H), 6.71 (s, 1H), 6.43-6.35 (m, 1H), 6.30 (dd, J = 16.9, 9.8 Hz, 1H), 5.77-5.69 (m, 2H), 4.22-4.13 (m, 1H), 4.13- 4.03 (m, 1H), 3.84 (s, 3H), 3.24- 3.15 (m, 1H), 3.13-3.09 (m, 2H), 2.95-2.74 (m, 2H), 2.40-2.31 (m, 1H), 2.31 (s, 6H), 2.20-2.16 (m, 1H), 2.01-1.88 (m, 1H), 1.72- 1.69 (m, 1H); 555.5[M + H]⁺ 1.00 396

N-(5-((6-((R)-3-(3- cyanophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.57 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 7.79 (d, J = 1.8 Hz, 1H), 7.71 (dt, J = 7.9, 1.6 Hz, 1H), 7.55 (dt, J = 7.7, 1.5 Hz, 1H), 7.45 (t, J = 7.7 Hz, 1H), 6.96 (s, 1H), 6.83 (s, 1H), 6.74 (s, 1H), 6.37 (dd, J = 16.9, 1.6 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.77-5.71 (m, 2H), 4.22-4.14 (m, 1H), 4.14-4.03 (m, 1H), 3.83 (s, 3H), 2.96-2.92 (m, 4H), 2.86-2.77 (m, 1H), 2.74- 2.56 (m,4H), 2.52 (q, J = 7.2 Hz, 2H), 2.39-2.30 (m, 1H), 1.16(t, J = 7.2 Hz, 3H); 555.5[M + H]⁺ 1.05 397

N-(5-((6-((R)-3- (3,5-difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophenyl)- (E)-4-(dimethylamino)but- 2-enamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.64 (s, 1H), 8.17 (s, 2H), 7.12 (dq, J = 9.0, 3.0 Hz, 4H), 6.86 (s, 1H), 6.74-6.61 (m, 2H), 5.56 (dd, J = 8.7, 5.0 Hz, 2H), 4.13 (td, J = 8.0, 3.9 Hz, 2H), 3.88-3.75 (m, 9H), 2.85 (t, J = 4.6 Hz, 4H), 2.76 (dtd, J = 12.2, 7.8, 3.8 Hz, 3H), 2.25 (ddt, J = 12.1, 7.9, 3.7 Hz, 2H), 1.77 (s, 3H), 1.23 (s, 4H),; 596.4[M + H]⁺ 1.15 398

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 8.14 (s, 1H), 7.79-7.72 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.82 (s, 1H), 6.70-6.59 (m, 1H), 6.36 (s, 1H), 6.25-6.17 (m, 1H), 5.72 (dd, J = 10.1,2.0 Hz, 1H), 5.59 (dd, J = 8.7, 5.1 Hz, 1H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 3H), 3.07 (d, J = 11.4 Hz, 3H), 2.98-2.59 (m, 11H), 2.56 (s, 1H), 2.30-2.21 (m, 1H), 1.94-1.65 (m, 5H), 1.25 (dd, J = 11.4, 4.7 Hz, 4H),;624.4[M + H]⁺ 1.21 399

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.83 (d, J = 1.9 Hz, 1H), 7.75 (dd, J = 8.8, 6.9 Hz, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.82 (s, 1H), 6.67 (ddd, J = 19.8, 16.8, 10.3 Hz, 2H), 6.36 (s, 1H), 6.23 (q, J = 2.3 Hz, 1H), 5.75-5.70 (m, 1H), 5.59 (dd, J = 8.6, 5.1 Hz, 1H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 3H), 3.58 (q, J = 5.1, 3.4 Hz, 2H), 2.78 (dq, J = 8.2, 4.2 Hz, 3H), 2.60 (s, 3H), 2.31-2.21 (m, 2H), 1.78-1.64 (m, 3H), 1.26 (t, J = 7.1 Hz, 15H), 1.16 (s, 3H),; 638.5[M + H]⁺ 1.21 400

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (d, J = 2.9 Hz, 2H), 7.83 (d, J = 1.8 Hz, 1H), 7.79- 7.72 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.83 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.1, 2.0 Hz, 1H), 5.59 (dd, J = 8.7, 5.0 Hz, 1H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 3H), 3.59 (t, J = 4.5 Hz, 4H), 3.33 (s, 6H), 3.05 (d, J = 11.0 Hz, 2H), 2.78 (dtd, J = 12.1, 7.9, 3.8 Hz, 1H), 2.66 (ddd, J = 12.4, 9.5, 3.9 Hz, 2H), 2.26 (dtd, J = 12.6, 8.2, 4.9 Hz, 2H), 1.91- 1.80 (m, 2H), 1.75-1.62 (m, 2H), 1.24 (d, J = 3.4 Hz, 2H), 0.85 (td, J = 8.1, 7.4, 3.1 Hz, 1H),; 611.4[M + H]⁺ 1.22 401

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.53 (s, 1H), 8.34 (d, J = 1.0 Hz, 1H), 7.53 (t, J = 8.2 Hz, 1H), 7.18 (s, 1H), 7.13-7.06 (m, 2H), 6.82 (s, 1H), 6.73 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 6.26 (dd, J = 17.0, 10.0 Hz, 1H), 5.87 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.11 (td, J = 7.2, 6.2, 3.5 Hz, 1H), 4.06 (q, J = 8.0, 7.0 Hz, 1H), 3.84 (s, 3H), 3.02-2.90 (m, 4H), 2.84-2.78 (m, 1H), 2.76-2.58 (m, 4H), 2.56 (q, J = 7.2 Hz, 2H), 2.30-2.23 (m, 1H), 1.16 (t, J = 7.2 Hz, 3H); 582.4[M + H]⁺ 1.25 402

N-(1-(2- acrylamido-4-((6- ((R)-3-(4-chloro- 2-fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-5- methoxyphenyl)pip- eridine-4-yl)-N- (1-isopropylpiperidine- 4-yl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.10 (s, 1H), 9.48 (s, 1H), 8.31 (s, 1H), 7.95 (s, 1H), 7.51-7.47 (m, 1H), 7.40 (t, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.0 Hz, 1H), 6.90 (d, J = 38.7 Hz, 2H), 6.25 (dd, J = 17.0, 2.0 Hz, 2H), 6.08 (d, J = 16.5 Hz, 1H), 5.82-5.59 (m, 4H), 4.30 (dd, J = 7.7, 4.1 Hz, 2H), 4.06 (d, J = 7.8 Hz, 1H), 3.83 (s, 3H), 3.43 (s, 2H), 3.39- 3.24 (m, 6H), 3.19 (d, J = 16.3 Hz, 2H), 3.04-2.87 (m, 4H), 2.30-2.21 (m, 1H), 1.69 (s, 5H), 1.29 (d, J = 6.6 Hz, 6H),; 747.3 [M + H]⁺ 1.5 403

N-(5-((6-((R)-3- (4-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)pip- eridine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.79 (s, 1H), 8.44 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.52 (t, J = 8.3 Hz, 1H), 7.33 (s, 1H), 7.13-7.06 (m, 2H), 6.74 (s, 1H), 6.71 (s, 1H), 6.42-6.27 (m, 2H), 5.86 (dd, J = 8.7, 4.4 Hz, 1H), 5.75 (dd, J = 9.0, 2.5 Hz, 1H), 4.12 (dt, J = 8.0, 4.0 Hz, 1H), 4.09-4.01 (m, 1H), 3.85 (s, 3H), 3.11 (d, J = 11.9 Hz, 2H), 2.73 (d, J = 12.3 Hz, 4H), 2.54 (s, 6H), 2.30-2.24 (m, 1H), 2.12 (d, J = 12.8 Hz, 2H), 1.88- 1.79 (m, 2H); 596.4[M + H]⁺ 1.24 404

N-(5-((6-((R)-3- (4-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-3- (dimethylamino)pyrolidine-1- yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.05 (s, 1H), 7.91 (s, 1H), 7.28 (t, J = 8.2 Hz, 1H), 7.15-7.07 (m, 2H), 6.83 (s, 1H), 6.49 (dd, J = 16.9, 10.2 Hz, 1H), 6.30- 6.23 (m, 1H), 6.08 (s, 1H), 5.69 (d, J = 10.8 Hz, 1H), 5.62 (dd, 8.4, 5.6 Hz, 1H), 4.23 (td, J = 7.6, 4.3 Hz, 1H), 4.14- 4.07 (m, 1H), 4.02 (dd, J = 15.4, 8.0 Hz, 1H), 3.85 (s, 2H), 3.76 (S, 3H), 3.69 (s, 1H), 3.43 (d, J = 5.8 Hz, 1H), 3.29 (s, 1H), 3.25-3.18 (m, 3H), 3.13 (d, J = 11.3 Hz, 2H), 2.89 (s, 7H), 2.76 (t, J = 12.4 Hz, 2H), 2.62-2.50 (m, 1H), 2.28 (td, J = 12.6, 5.2 Hz, 2H), 2.18 (d, J = 9.5 Hz, 2H), 1.98 (d, J = 11.4 Hz, 2H), 1.89 (s, 2H); 665.5 [M + H]⁺ 1.18 405

N-(5-((6-((R)-3- (4-chloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino)pyrolidine-1- yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 11.08 (s, 1H), 8.36 (d, J = 9.3 Hz, 2H), 8.08 (s, 1H), 7.23 (t, J = 8.3 Hz, 1H), 7.15-7.08 (m, 2H), 6.74 (s, 1H), 6.35 (d, J = 4.3 Hz, 2H), 6.09 (s, 1H), 5.75 (dd, J = 8.5, 4.9 Hz, 2H), 4.22 (dd, J = 12.7, 7.4 Hz, 1H), 4.08 (dd, J = 15.3, 7.6 Hz, 1H), 3.82 (s, 3H), 3.12 (s, 2H), 2.93 (s, 6H), 2.81 (d, J = 10.1 Hz, 2H), 2.35 (dt, J = 12.5, 7.2 Hz, 1H), 2.20 (s, 3H), 2.06 (s, 2H),; 665.5 [M + H]⁺ 1.20 406

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 9.29 (s, 1H), 8.70 (s, 1H), 8.17 (s, 2H), 7.37 (t, J = 8.1 Hz, 1H), 7.11 (d, J = 9.1 Hz, 2H), 6.69-6.58 (m, 2H), 6.42- 6.30 (m, 2H), 5.79 (dd, J = 8.4, 4.6 Hz, 1H), 5.71 (d, J = 10.3 Hz, 1H), 4.18 (dd, J = 12.5, 7.7 Hz, 1H), 4.06 (dd, J = 15.8, 7.9 Hz, 1H), 3.97 (d, J = 3.1 Hz, 4H), 3.81 (s, 3H), 3.74 (d, J = 11.0 Hz, 1H), 3.51 (s, 1H), 3.23 (d, J = 7.0 Hz, 2H), 3.11-3.02 (m, 2H), 2.83 (ddd, J = 24.6, 12.9, 7.1 Hz, 2H), 2.41 (d, J = 6.5 Hz, 1H), 2.38- 2.24 (m, 2H), 2.06 (s, 2H); 624.4 [M + H]⁺ 1.29 407

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 10.96 (s, 1H), 8.86 (s, 1H), 8.06 (s, 1H), 7.94 (S, 1H), 7.23 (t, J = 8.3 Hz, 1H), 7.15-7.08 (m, 2H), 6.69 (dd, J = 16.8, 10.2 Hz, 1H), 6.57 (s, 1H), 6.32 (d, J = 16.8 Hz, 1H), 5.84 (s, 1H), 5.76-5.65 (m, 2H), 4.20 (dd, J = 12.8, 7.5 Hz, 1H), 4.03 (dd, J = 15.0, 7.2 Hz, 5H), 3.81 (s, 1H), 3.79 (s, 3H), 3.65 (d, J = 4.6 Hz, 1H), 3.25 (s, 1H), 2.98 (dd, J = 16.5, 8.2 Hz, 1H), 2.93-2.84 (m, 1H), 2.58 (dd, J = 10.8, 7.8 Hz, 1H), 2.45-2.28 (m, 3H), 2.06 (s, 2H); 624.5 [M + H]⁺ 1.29 408

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.70 (s, 1H), 9.17(s, 1H), 8.27 (s, 1H), 8.00 (s, 1H), 7.52-7.35 (m, 2H), 7.30 (def, J = 8.4, 2.0 Hz, 1H), 6.90 (s, 1H), 6.70 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.1, 2.0 Hz, 2H), 5.71 (ddd, J = 35.7, 8.4, 4.3 Hz, 2H), 4.29-4.25 (m, 1H), 4.01 (d, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.76 (s, 6H), 3.42 (d, J = 5.4 Hz, 1H), 3.38-3.33 (m, 1H), 3.30-3.25 (m, 1H), 3.21 (d, J = 10.8 Hz, 2H), 2.93-2.87 (m, 1H), 2.79 (t, J = 11.8 Hz, 2H), 2.29-2.02 (m, 6H), 1.32 (d, J = 6.5 Hz, 6H),; 679.3 [M + H]⁺ 1.41 409

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 10.05 (s, 1H), 9.22 (s, 1H), 8.30 (s, 1H), 7.93 (s, 1H), 7.49 (dd, J = 10.3, 2.0 Hz, 1H), 7.40 (t, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.3, 2.1 Hz, 1H), 6.91 (s, 1H), 6.77-6.64 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 2H), 5.83-5.62 (m, 2H), 4.36-4.30 (m, 4H), 4.06 (d, J = 7.8 Hz, 1H), 3.81 (s, 3H), 3.67 (s, 2H), 3.57 (d, J = 11.1 Hz, 2H), 3.45 (s, 1H), 3.22 (s, 4H), 2.93 (d, J = 8.9 Hz, 1H), 2.81 (s, 2H), 2.30-2.01 (m, 6H), 1.29 (t, J = 7.2 Hz, 3H),; 665.3 [M + H]⁺ 1.4 410

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4- (dimethylamino)-[1,4′- bipiperidine]-1′-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 10.07 (s, 1H), 9.24 (s, 1H), 8.31 (s, 1H), 7.92 (s, 1H), 7.49 (dd, J = 10.3, 2.1 Hz, 1H), 7.39 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.0 Hz, 1H), 6.90 (s, 1H), 6.75 (dd, J = 17.0, 10.3, Hz, 1H), 6.28-6.14 (m, 2H), 5.71 (dd, J = 24.9, 3.9 Hz, 2H), 4.31 (td, J = 7.5, 4.1 Hz, 1H), 4.05 (q, J = 7.8 Hz, 1H), 3.82 (d, J = 2.6 Hz, 3H), 3.63 (s, 1H), 3.50 (d, J = 8.0 Hz, 1H), 3.40-3.33 (m, 1H), 3.23 (d, J = 11.1 Hz, 2H), 3.14 (s, 2H), 2.97-2.88 (m, 1H), 2.79 (s, 2H), 2.71 (d, J = 4.6 Hz, 6H), 2.54 (s, 1H), 2.30 (d, J = 8.8 Hz, 5H), 2.18 (d, J = 10.3 Hz, 2H), 2.08 (d, J = 11.9 Hz, 2H),; 679.3 [M + H]⁺ 1.33 411

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.62 (s, 1H), 8.18- 8.11 (m, 2H), 7.47-7.29 (m, 4H), 6.86 (s, 1H), 6.59 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.72 (dd, J = 9.9, 2.0 Hz, 1H), 5.54 (dd, J = 8.7, 5.0 Hz, 1H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.89-3.75 (m, 4H), 2.87 (t, J = 4.8 Hz, 4H), 2.77 (dtd, J = 12.0, 7.8, 3.8 Hz, 2H), 2.57 (s, 3H), 2.40 (q, J = 7.1 Hz, 2H), 2.30- 2.17 (m, 1H), 1.04 (t, J = 7.1 Hz, 3H); 564.5 [M + H]⁺ 1.15 412

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 4.8 Hz, 2H), 7.47-7.28 (m, 4H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.77- 5.66 (m, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.87-3.75 (m, 4H), 3.05 (d, J = 11.1 Hz, 2H), 2.77 (dtd, J = 11.6, 7.8, 3.5 Hz, 1H), 2.72-2.61 (m, 3H), 2.53 (s, 3H), 2.44-2.17 (m, 8H), 1.85 (d, J = 12.0 Hz, 2H), 1.76- 1.61 (m, 2H), 0.99 (t, J = 7.1 Hz, 3H); 647.5 [M + H]⁺ 1.14 413

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 5.2 Hz, 2H), 7.48-7.29 (m, 4H), 6.82 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.34(s, 1H), 6.20 (dd, J = 17.0,2.0 Hz, 1H), 5.71 (d, J = 10.3 Hz, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.14 (td, d = 7.9, 3.8 Hz, 1H), 3.89-3.74 (m, 4H), 3.01 (d, J = 11.3 Hz, 2H), 2.86-2.72 (m, 2H), 2.67 (t, J = 10.6 Hz, 4H), 2.34 (d, J = 8.5 Hz, 1H), 2.29- 2.18 (m, 1H), 2.12(s,6H), 1.97- 1.77 (m, 4H), 1.76-1.52 (m, 4H); 647.5 [M + H] 1.06 414

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- [1,4′-bipiperidine]-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 8.95 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 6.3 Hz, 2H), 7.46-7.29 (m, 4H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (d, J = 10.3 Hz, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.14 (td, J = 7.8, 3.7 HZ, 1H), 3.89-3.75 (m, 4H), 3.01 (dd, J = 31.8, 11.2 Hz, 4H), 2.77 (dtd, J = 11.9, 7.8, 3.6 Hz, 1H), 2.72-2.60 (m, 2H), 2.35 (d, J = 13.0 Hz, 1H), 2.24 (s, 6H), 2.17 (q, J = 11.9, 9.8 Hz, 4H), 1.85-1.65 (m, 6H), 1.37 (d, J = 11.9 Hz, 2H); 661.5 [M + H]⁺ 1.04 415

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino) piperidine-1-yl)-4- methoxyphenyljacrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.05 (s, 1H), 8.20 (d, J = 16.0 Hz, 1H), 8.06 (s, 1H), 7.44 (s, 1H), 7.41- 7.29 (m, 3H), 6.86 (s, 1H), 6.62 (t, J = 13.9 Hz, 1H), 6.30-6.21 (m, 2H), 5.75 (d, J = 10.4 Hz, 1H), 5.53 (t, J = 6.9 Hz, 1H), 4.20 (s, 1H), 3.89 (d, J = 22.7 Hz, 4H), 3.81 (s, 3H), 3.51 (d, J = 11.9 Hz, 4H), 3.29 (s, 1H), 3.18 (d, J = 11.4 Hz, 2H), 2.74 (t, J = 11.3 Hz, 4H), 2.27 (s, 1H), 2.15 (d,J = 11.7 Hz, 2H), 1.99- 1.77 (m, 2H), 1.18 (d, J = 6.2 Hz, 5H),; 648.5[M + H]⁺ 1.25 416

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.06 (s, 1H), 8.24 (s, 1H), 8.06 (s, 1H), 7.43 (q, J = 2.3 Hz, 1H), 7.42-7.32 (m, 3H), 6.86 (s, 1H), 6.63 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (d, J = 16.6 Hz, 2H), 5.74 (d, J = 10.4 Hz, 1H), 5.53 (dd, J = 8.5, 5.2 Hz, 1H), 4.21 (s, 1H), 3.93 (d, J = 8.5 Hz, 1H), 3.81 (s, 3H), 3.63 (s, 2H), 3.17 (d, J = 11.7 Hz, 8H), 2.93-2.82 (m, 4H), 2.76 (t, J = 10.9 Hz, 3H), 2.30 (dd, J = 15.8, 10.4 Hz, 2H), 2.05 (s, 2H), 1.89 (d, J = 13.3 Hz, 2H),; 633.5[M + H]⁺ 1.13 417

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.08 (d, J = 10.5 Hz, 1H), 8.22 (d, J = 11.7 Hz, 1H), 8.06 (s, 1H), 7.43 (d, J = 6.2 Hz, 1H), 7.42-7.28 (m, 3H), 6.86 (s, 1H), 6.59 (d, J = 11.0 Hz, 1H), 6.32- 6.16 (m, 2H), 5.74 (d, J = 10.4 Hz, 1H), 5.53 (dd, J = 8.6, 5.2 Hz, 1H), 4.20 (s, 1H), 4.05 (d, J = 12.6 Hz, 3H), 3.97-3.85 (m, 2H), 3.81 (s, 3H), 3.71 (s, 3H), 3.49 (d, J = 12.2 Hz, 2H), 3.32 (s, 1H), 3.18 (d, J = 9.5 Hz, 4H), 2.90-2.67 (m, 2H), 2.35- 2.20 (m, 1H), 2.14 (d, J = 11.4 Hz, 2H), 1.91 (s, 1H),; 620.5[M + H]⁺ 1.16 418

N-(2-(4-((R)-3- (dimethylamino)pyrolidine-1- yl)piperidine- 1-yl)-5-((6-((R)-3-(2- fluoro-3- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.48 (s, 1H), 8.35 (s, 1H), 7.39 (td, J = 7.5, 1.9 Hz, 1H), 7.12-7.04 (m, 1H), 7.02-6.94 (m, 2H), 6.73 (d, J = 11.0 Hz, 2H), 6.39- 6.27 (m, 1H), 6.27-6.20 (m, 1H), 5.90 (dd, J = 8.8, 4.4 Hz, 1H), 5.73 (dd, J = 9.8, 1.7 Hz, 1H), 4.17-4.01 (m, 2H), 3.84 (s, 3H), 3.55 (h, J = 6.7 Hz, 1H), 3.09-2.88 (m, 7H), 2.83- 2.62 (m,4H), 2.51 (dd, J = 9.1,7.2 Hz, 1H), 2.33 (s, 6H), 2.14-2.00 (m, 3H), 1.93-1.66 (m, 3H), 1.36 (d, J = 6.6 Hz, 3H),; 645.6[M + H]⁺ 1.05 419

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.65 (s, 1H), 8.34 (s, 1H), 8.16 (s, 1H), 7.35 (t, J = 7.9 Hz, 1H), 7.31- 7.28 (m, 1H), 7.18 (dd, J = 8.4, 2.0 Hz, 1H), 6.95 (s, 1H), 6.75 (s, 1H), 6.67 (s, 1H), 6.43-6.23 (m, 2H), 5.74 (dd, J = 9.7, 1.8 Hz, 1H), 5.65 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.76 (t, J = 4.7 Hz, 4H), 3.25-3.05 (m, 4H), 2.98 (p, J = 7.4 Hz, 1H), 2.76 (dtd, J = 12.3, 8.1, 4.2 Hz, 1H), 2.53 (ddt, J = 39.6, 11.1, 4.6 Hz, 4H), 2.33 (ddt, J = 11.9, 7.9, 4.0 Hz, 1H), 2.19 (ddt, J = 12.1, 7.6, 4.3 Hz, 1H), 1.99-1.91 (m, 1H),; 624.4[M + H]⁺ 1.15 420

N-(2-(4- (dimethylamino)- [1,4′-bipiperidine]-1′- yl)-5-((6-((R)-3-(2- fluoro-3- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.23 (s, 1H), 7.93 (s, 1H), 7.19 (dt, J = 24.4, 7.6 Hz, 3H), 7.08 (t, J = 7.6 Hz, 1H), 6.72 (dd, J = 16.9, 10.2 Hz, 1H), 6.48 (d, J = 16.9 Hz, 1H), 6.10 (s, 1H), 5.90 (d, J = 10.4 Hz, 1H), 5.73 (t, J = 7.0 Hz, 1H), 4.44 (td, J = 7.5, 4.4 Hz, 1H), 4.23 (q, J = 7.7 Hz, 1H), 3.93 (d, J = 8.2 Hz, 5H), 3.79- 3.64 (m, 2H), 3.53 (ddq, J = 12.7, 8.5, 4.1 Hz, 2H), 3.37 (d, J = 12.1 Hz, 2H), 3.30-3.22 (m, 1H), 3.07 (ddd, J = 13.4, 8.5, 5.5 Hz, 1H), 2.97 (s, 6H), 2.91 (d, J = 3.6 Hz, 2H), 2.48 (dd, J = 19.1, 12.2 Hz, 5H), 2.39-2.24 (m, 7H),; 659.6[M + H]⁺ 1.06 421

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(2-fluoro-3- methylphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.42 (s, 1H), 8.36 (d, J = 0.9 Hz, 1H), 7.39 (td, J = 7.4, 1.9 Hz, 1H), 7.07 (dt, J = 7.4, 3.8 Hz, 1H), 7.02- 6.91 (m, 2H), 6.73 (d, J = 8.9 Hz, 2H), 6.45-6.20 (m, 2H), 5.90 (dd, J = 8.8, 4.4 Hz, 1H), 5.78-5.71 (m, 1H), 4.17- 4.03 (m, 2H), 3.84 (s, 3H), 3.66 (t, J = 5.0 Hz, 2H), 3.51 (t, J = 5.0 Hz, 2H), 3.12-3.03 (m, 2H), 2.84 (td, J = 8.1, 4.3 Hz, 1H), 2.73 (qd, J = 11.9, 2.2 Hz, 2H), 2.61 (dt, J = 13.8, 5.0 Hz, 4H), 2.28 (d, J = 2.0 Hz, 3H), 2.11 (s, 3H), 2.06-2.00 (m, 2H), 1.67 (qd, J = 12.0, 3.9 Hz, 2H), 1.43 (d, J = 6.6 Hz, 2H),; 659.5[M + H]⁺ 1.15 422

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((2- (dimethylamino)ethyl)- (methyl)amino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.46 (s, 1H), 8.37 (s, 1H), 7.56 (dt, J = 14.8, 7.4 Hz, 1H), 6.92 (s, 1H), 6.87-6.70 (m, 4H), 6.40-6.22 (m, 2H), 5.88 (dd, J = 8.9, 4.3 Hz, 1H), 5.80-5.71 (m, 1H), 4.16-4.03 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.6 Hz, 2H), 2.86-2.62 (m, 5H), 2.37 (s, 3H), 2.30 (s, 6H), 1.99 (d, J = 12.5 Hz, 2H), 1.80-1.68 (m, 6H),; 637.6 [M + H]⁺ 1.06 423

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90-8.85 (s, 1H), 8.48 (s, 1H), 8.37 (s, 1H), 7.56 (d, J = 8.6 Hz, 1H), 6.93 (s, 1H), 6.80 (m,4H), 6.35 (d, J = 16.6 Hz, 1H), 6.26 (m, 1H), 5.88 (m, 1H), 5.73 (d, J = 11.0 Hz, 1H), 4.44(s, 1H), 4.09 (m, 4H), 3.86 (s, 3H), 3.77 (s, 1H), 3.67 (d, J = 7.7 Hz, 1H), 3.14 (d, J = 9.6 Hz, 1H), 3.03 (d, J = 11.8 Hz, 2H), 2.78 (m, 4H), 2.58 (m, 1H), 2.50 (d, J = 9.8 Hz, 1H), 2.27 (m, 1H), 2.06 (m, 1H), 1.92 (d, J = 11.3 Hz, 2H), 1.84 (s, 1H),; 634.5[M + H]⁺ 1.16 424

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.56 (m, 1H), 6.92 (s, 1H), 6.83 (q, 2H), 6.75 (s, 2H), 6.35 (d, J = 16.8 Hz, 1H), 6.26 (m, 1H), 5.87 (m, 1H), 5.73 (d, J = 10.3 Hz, 1H), 4.10 (s, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.5 Hz, 2H), 2.86-2.63 (m, 8H), 2.54 (s, 3H), 2.44 (m, 3H), 2.30 (m, 3H), 2.09 (d, J = 5.0 Hz, 2H), 1.11 (s, 3H),; 649.5 [M + H]⁺ 1.10 425

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((1R,4R)-5-ethyl-2,5- diazabicyclo[2.2.1]- heptane-2-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.47 (s, 1H), 7.56 (m, 1H), 6.91 (s, 1H), 6.80 (m, 4H), 6.34 (d, J = 16.9 Hz, 1H), 6.25 (m, 1H), 5.86 (m, 1H), 5.72 (d, J = 11.0 Hz, 1H), 4.09 (m, 2H), 3.85 (s, 3H), 3.61 (s, 1H), 3.36 (s, 1H), 3.00 (m, 3H), 2.88 (d, J = 9.9 Hz, 2H), 2.76 (d, J = 23.4 Hz, 3H), 2.58 (m, 6H), 2.27 (m, 1H), 2.02 (m, 1H), 1.91 (m, 1H), 1.80 (m, 2H), 1.10 (t, 3H),; 661.5 [M + H]⁺ 1.07 426

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-morpholino-[1,4′- bipiperidine]-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.56 (m, 1H), 6.92 (s, 1H), 6.82 (s, 2H), 6.75 (m, 2H), 6.36 (d, J = 17.0 Hz, 1H), 6.27 (m, 1H), 5.87 (m, 1H), 5.74 (d, J = 10.9 Hz, 1H), 4.10 (d, J = 11.3 Hz, 3H), 3.85 (s, 3H), 3.73 (m, 4H), 3.15-3.02 (m, 4H), 2.79 (m, 2H), 2.72 (m, 2H), 2.57 (m, 4H), 2.38 (m, 2H), 2.22 (m, 5H), 2.03 (d, J = 14.6 Hz, 2H), 1.87 (d, J = 13.5 HZ, 2H),; 705.6 [M + H]⁺ 1.12 427

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.41 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 7.56 (q, J = 8.4 Hz, 1H), 6.93 (s, 1H), 6.87-6.78 (m, 2H), 6.75 (s, 2H), 6.40-6.33 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.88 (dd, J = 8.7, 4.3 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.14- 4.05 (m, 2H), 3.85 (s, 3H), 3.67 (t, J = 5.1 Hz, 2H), 3.52 (t, J = 5.1 Hz, 2H), 3.07 (d, J = 11.5 Hz, 2H), 2.81 (dd, J = 8.2, 4.2 Hz, 1H), 2.77-2.68 (m, 2H), 2.61 (dt, J = 13.9, 5.0 Hz, 4H), 2.44- 2.36 (m, 1H), 2.32-2.23 (m, 1H), 2.11 (s, 3H), 2.04 (d, J = 12.4 Hz, 2H), 1.69 (t, J = 11.8 Hz, 2H),; 663.5[M + H] 1.33 428

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.56 (td, J = 8.6, 6.5 Hz, 1H), 6.92 (s, 1H), 6.87-6.77 (m, 2H), 6.75 (d, J = 2.4 Hz, 2H), 6.39-6.32 (m, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.87 (dd, J = 8.8, 4.3 Hz, 1H), 5.73 (dd, J = 9.9, 1.5 Hz, 1H), 4.15-4.05 (m, 2H), 3.84 (s, 3H), 3.06 (d, J = 11.5 Hz, 2H), 2.82-2.61 (m, 10H), 2.35-2.22 (m, 2H), 2.10 (d, J = 12.4 Hz, 2H), 1.72-1.60 (m, 4H), 1.08 (d, J = 6.5 Hz, 6H),; 663.6[M + H] 1.09 429

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)-3- (dimethylamino)pyrol- idine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.48 (s, 1H), 8.36 (s, 1H), 7.56 (q, J = 8.3 Hz, 1H), 6.99 (s, 1H), 6.88- 6.77 (m, 2H), 6.75 (s, 1H), 6.38-6.31 (m, 1H), 6.30-6.12 (m, 2H), 5.87 (dd, J = 8.8, 4.3 Hz, 1H), 5.75-5.70 (m, 1H), 4.14-4.04 (m, 2H), 3.85 (s, 3H), 3.01 (t, J = 16.2 Hz, 5H), 2.87-2.60 (m, 5H), 2.53 (d, J = 8.7 Hz, 1H), 2.34 (s, 6H), 2.07 (d, J = 10.6 Hz, 2H), 1.88 (t, J = 10.2 Hz, 1H), 1.75 (t, J = 11.2 Hz, 2H), 1.38 (s, 2H),; 649.5[M + H] 1.04 430

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.56 (q, J = 8.0 Hz, 1H), 6.92 (s, 1H), 6.87- 6.77 (m, 2H), 6.75 (s, 2H), 6.35 (d, J = 16.9 Hz, 1H), 6.23 (dd, J = 16.8, 10.0 Hz, 1H), 5.87 (dd, J = 8.8, 4.3 Hz, 1H), 5.73 (d, J = 10.4 Hz, 1H), 4.14-4.04 (m, 2H), 3.84 (s, 3H), 3.24 (t, J = 6.1 Hz, 2H), 3.19-3.16 (m, 2H), 3.06 (d, J = 11.7 Hz, 2H), 2.92 (d, J = 11.2 Hz, 2H), 2.66 (s, 4H), 2.39 (t, J = 6.2 Hz, 2H), 2.27 (s, 3H), 2.09 (d, J = 12.5 Hz, 2H), 1.95 (t, J = 11.6 Hz, 2H), 1.83 (d, J = 12.3 Hz, 2H), 1.65 (t, J = 6.2 Hz, 4H), 1.14 (t, J = 7.2 Hz, 4H),; 718.6[M + H] 1.13 431

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4-(2- (dimethylamino)ethyl)- piperazine-1- yl)piperidine-1-yl)-4- methoxyphenyljacrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.46 (d, J = 10.8 Hz, 1H), 8.35 (d, J = 8.7 Hz, 1H), 7.58- 7.52 (m, 1H), 6.93 (d, J = 4.0 Hz, 1H), 6.88-6.78 (m, 3H), 6.75 (s, 1H), 6.35 (d, J = 17.1 Hz, 1H), 6.24 (dd, J = 16.8, 10.1 Hz, 1H), 5.85 (s, 1H), 5.74 (d, J = 10.0 Hz, 1H), 4.14- 4.07 (m, 2H), 3.94 (d, J = 7.7 Hz, 1H), 3.85 (s, 3H), 3.27 (dd, J = 7.7, 4.5 Hz, 4H), 3.22 (d, J = 4.5 Hz, 2H), 3.18 (dd, J = 7.3, 5.5 Hz, 4H), 2.60- 2.55 (m, 8H), 2.39 (s, 6H), 1.77- 1.72 (m,4H),; 692.6[M + H] 1.12 432

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- propylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.69 (s, 1H), 8.17 (d, J = 1.0 Hz, 1H), 7.83 (d, J = 1.8 Hz, 1H), 7.80-7.72 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.84 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.37 (s, 1H), 6.22 (dd, J = 17.0, 2.0 Hz, 1H), 5.73 (d, J = 10.4 Hz, 1H), 5.59 (dd, J = 8.7, 5.1 Hz, 1H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.81 (s, 3H), 3.59 (pd, J = 6.6, 3.9 Hz, 7H), 3.34 (s, 14H), 3.11 (dt, J = 7.4, 3.7 Hz, 6H), 2.08 (s, 3H),; 652.5[M + H]⁺ 1.10 433

N-(5-((6((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4,4- difluoro-[1,4′- bipiperidine]-1′-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (s, 1H), 7.83 (d, J = 1.9 Hz, 1H), 7.81-7.70 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.82 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.3, 2.0 Hz, 1H), 5.59 (dd, J = 8.7, 5.0 Hz, 1H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 3H), 3.33 (s, 5H), 3.06 (d, J = 11.1 Hz, 2H), 2.78 (dtd, J = 12.0, 7.9, 3.8 Hz, 1H), 2.72-2.55 (m, 6H), 2.31- 2.20 (m, 1H), 1.95 (tt, J = 13.8, 5.4 Hz, 4H), 1.84-1.70 (m, 4H),; 645.4 [M + H]* 1.18 434

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.96 (s, 1H), 8.62 (s, 1H), 8.16 (s, 1H), 7.83 (d, J = 1.8 Hz, 1H), 7.80-7.72 (m, 2H), 7.58 (t, J = 7.8 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.36 (s, 1H), 6.23 (dd, J = 33.1, 2.0 Hz, 2H), 5.72 (dd, J = 10.2, 2.0 Hz, 1H), 5.59 (dd, J = 8.6, 5.0 Hz, 1H), 4.15 (td, J = 7.8, 3.8 Hz, 1H), 3.80 (s, 3H), 3.46-3.21 (m, 8H), 3.06 (d, J = 11.1 Hz, 2H), 2.78 (dtd, J = 12.0, 7.9, 3.8 Hz, 1H), 2.66 (td, J = 10.4, 9.6, 6.0 Hz, 2H), 2.53 (t, J = 4.9 Hz, 2H), 2.47 (d, J = 4.4 Hz, 2H), 1.99 (s, 3H), 1.87-1.79 (m, 2H), 1.79-1.66 (m, 2H),; 652.5[M + H]⁺ 1.10 435

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 638.6[M + H]⁺ 1.01 436

N-(2-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.13 (s, 1H), 7.52 (s, 1H), 7.07 (d, J = 6.6 Hz, 2H), 6.84 (dd, J = 10.1,8.0 Hz, 1H), 6.57 (s, 1H), 6.48 (dd, J = 17.0, 10.1 Hz, 1H), 6.41-6.26 (m, 2H), 5.79 (dd, J = 10.1, 1.7 Hz, 1H), 5.56 (dd, J = 8.5, 4.8 Hz, 1H), 4.60 (s, 1H), 4.38 (s, 1H), 4.17-4.10 (m, 2H), 3.98-3.84 (m, 5H), 3.51 (d, J = 8.3 Hz, 1H), 3.14 (d, J = 9.2 Hz, 1H), 2.88-2.75 (m, 1H), 2.33 (dt, J = 8.7, 6.4 Hz, 1H), 2.06 (d, J = 8.3 Hz, 1H), 1.98-1.89 (m, 1H),; 551.4[M + H]⁺ 1.38 437

N-(2-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(3.5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.14 (s, 1H), 7.52 (s, 1H), 7.08 (t, J = 6.4 Hz, 2H), 6.84 (ddd, J = 9.1, 5.7, 2.2 Hz, 1H), 6.57 (s, 1H), 6.49 (dd, J = 17.0, 10.1 Hz, 1H), 6.41-6.33 (m, 2H), 5.79 (dd, J = 10.1, 1.7 Hz, 1H), 5.56 (dd, J = 8.6, 4.6 Hz, 1H), 4.60 (s, 1H), 4.38 (s, 1H), 4.20-4.09 (m, 2H), 3.98-3.86 (m, 5H), 3.53 (d, J = 9.5 Hz, 1H), 3.13 (d, J = 9.6 Hz, 1H), 2.87-2.73 (m, 1H), 2.38- 2.26 (m, 1H), 2.06 (d, J = 8.2 Hz, 1H), 1.98-1.90 (m, 1H),; 551.4[M + H]⁺ 1.37 438

N-(2-(4- cyclopropylpiperazine- 1-yl)-5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.35 (s, 1H), 8.20 (d, J = 7.2 Hz, 1H), 7.07 (d, J = 6.7 Hz, 2H), 6.92 (s, 1H), 6.84 (ddd, J = 9.1,5.6, 2.2 Hz, 1H), 6.58-6.46 (m, 2H), 6.37 (dd, J = 17.0, 1.3 Hz, 1H), 5.82 (d, J = 10.5 Hz, 1H), 5.57 (dd, J = 8.6, 4.8 Hz, 1H), 4.15 (td, J = 7.8, 4.2 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.89 (d, J = 7.7 Hz, 3H), 2.97-2.78 (m, 9H), 2.38-2.28 (m, 1H), 1.86-1.77 (m, 1H), 0.52 (ddd, J = 14.7, 10.7, 6.9 Hz, 4H),; 578.4 [M + H]⁺ 1.26 439

N-(4-methoxy-5-((6- ((R)-3-(naphthalene- 1-yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.96 (s, 1H), 8.50 (s, 1H), 8.38 (d, J = 0.9 Hz, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.92-7.85 (m, 1H), 7.77 (dd, J = 7.7, 4.6 Hz, 2H), 7.60-7.41 (m, 3H), 6.95 (s, 1H), 6.81 (d, J = 11.5 Hz, 2H), 6.45-6.32 (m, 2H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.69 (dt, J = 20.7, 6.3 Hz, 4H), 4.22-4.12 (m, 2H), 3.85 (s, 3H), 3.61 (p, J = 6.4 Hz, 1H), 3.03-2.90 (m, 5H), 2.63- 2.43 (m, 4H), 2.46-2.37 (m, 1H),; 608.5 [M + H]⁺ 1.25 440

N-(2-((2- (dimethylamino)ethy l)(methyl)amino)-4- methoxy-5-((6-((R)- 3-(naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.10 (s, 1H), 9.00 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 8.16 (d, J = 8.4 Hz, 1H), 7.88 (dd,J = 8.0, 1.5 Hz, 1H), 7.78 (dd, J = 10.6, 7.7 Hz, 2H), 7.60- 7.41 (m, 3H), 6.96 (s, 1H), 6.86- 6.77 (m, 2H), 6.45-6.36 (m, 2H), 6.29 (dd, J = 17.0, 10.0 Hz, 1H), 5.68 (dd, J = 9.9, 2.0 Hz, 1H), 4.27- 4.11 (m, 2H), 3.85 (s, 3H), 3.04- 2.92 (m, 1H), 2.92-2.84 (m, 2H), 2.72 (s, 3H), 2.45-2.37 (m, 1H), 2.36-2.30 (m, 2H), 2.28 (s, 6H),; 568.4 [M + H]⁺ 1.29 441

N-(4-methoxy-2-(4- methylpiperazine-1- yl)-5-((6-((R)-3- (naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.95 (s, 1H), 8.53 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.92-7.85 (m, 1H), 7.77 (t, J = 6.9 Hz, 2H), 7.60-7.41 (m, 3H), 6.95 (s, 1H), 6.79 (d, J = 6.6 Hz, 2H), 6.45- 6.33 (m, 2H), 6.27 (dd, J = 17.0, 10.0 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.24-4.11 (m, 2H), 3.85 (s, 3H), 3.03- 2.90 (m, 5H), 2.74-2.50 (m, 4H), 2.47-2.35 (m, 4H),; 566.4 [M + H]⁺ 1.23 442

N-(2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.48 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.88 (dd, J = 8.0, 1.5 Hz, 1H), 7.77 (t, J = 6.8 Hz, 2H), 7.60-7.41 (m, 3H), 6.93 (s, 1H), 6.77 (d, J = 11.0 Hz, 2H), 6.45-6.40 (m, 1H), 6.40-6.31 (m, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.25- 4.11 (m, 2H), 3.85 (s, 3H), 3.11-3.02 (m, 2H), 3.01-2.92 (m, 1H), 2.80- 2.67 (m, 2H), 2.45-2.40 (m, 1H), 2.39 (s, 6H), 2.35-2.24 (m, 1H), 2.11- 2.03 (m, 2H), 1.72-1.62 (m, 2H),; 594.5 [M + H]⁺ 1.24 443

N-(2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.71 (s, 1H), 8.35 (s, 1H), 8.18-8.12 (m, 2H), 7.88 (dd, J = 7.9, 1.5 Hz, 1H), 7.81-7.73 (m, 2H), 7.60-7.41 (m, 3H), 6.88 (s, 1H), 6.76 (d, J = 2.1 Hz, 2H), 6.45-6.34 (m, 2H), 6.29 (dd, J = 16.9, 9.8 Hz, 1H), 5.73 (dd, J = 9.9, 1.8 Hz, 1H), 4.24-4.13 (m, 2H), 3.84 (s, 3H), 3.24-3.15 (m, 1H), 3.13- 3.10 (m, 2H), 3.00-2.93 (m, 1H), 2.93-2.86 (m, 1H), 2.47-2.35 (m, 1H), 2.30 (s, 6H), 2.19 (d, J = 7.5 Hz, 1H), 2.01-1.87 (m, 2H),; 580.5 [M + H]⁺ 1.21 444

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5-((6- ((R)-3- (naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.95 (s, 1H), 8.57 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (dd, J = 8.0, 1.5 Hz, 1H), 7.81- 7.73 (m, 2H), 7.60-7.41 (m, 3H), 6.95 (s, 1H), 6.81 (d, J = 13.3 Hz, 2H), 6.45-6.32 (m, 2H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.24-4.11 (m, 2H), 3.84 (s, 3H), 3.03-2.88 (m, 5H), 2.76- 2.53 (m, 4H), 2.51 (t, J = 7.2 Hz, 2H), 2.47-2.35 (m, 1H), 1.16 (t, J = 7.2 Hz, 3H),; 580.4 [M + H]⁺ 1.25 445

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((3aR,6aR)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.80 (s, 1H), 8.47 (s, 1H), 8.33 (s, 1H), 7.23 (s, 1H), 7.04-6.96 (m, 2H), 6.74 (s, 1H), 6.72-6.64 (m, 2H), 6.39-6.23 (m, 2H), 5.75 (dd, J = 9.7, 1.7 Hz, 1H), 5.66 (dd, J = 8.6, 4.5 Hz, 1H), 4.14 (td, J = 7.9, 4.2 Hz, 1H), 4.06 (q, J = 16.0, 8.0 Hz, 1H), 3.84 (s, 3H), 3.18-3.10 (m, 2H), 3.07-2.97 (m, 3H), 2.85- 2.67 (m, 5H), 2.63-2.56 (m, 1H), 2.55-2.48 (m, 2H), 2.46 (s, 3H), 2.37- 2.28 (m, 1H), 2.26-2.18 (m, 1H), 2.13-1.95 (m, 3H), 1.87-1.65 (m, 3H); 661.50[M + H]⁺ 1.14 446

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-((3aS,6aS)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.81 (s, 1H), 8.48 (s, 1H), 8.33 (s, 1H), 7.20 (s, 1H), 7.03-6.97 (m, 2H), 6.74 (s, 1H), 6.71-6.65 (m, 2H), 6.38-6.23 (m, 2H), 5.75 (dd, J = 9.7, 1.6 Hz, 1H), 5.66 (dd, J = 8.6, 4.5 Hz, 1H), 4.14 (td, J = 8.1,4.3 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.16- 3.07 (m, 2H), 3.05-2.99 (m, 3H), 2.83-2.67 (m, 5H), 2.60-2.53 (m, 1H), 2.51-2.40 (m, 5H), 2.38-2.29 (m, 1H), 2.25-2.16 (m, 1H), 2.11- 2.00 (m, 3H), 1.86-1.64 (m, 3H); 661.50[M + H]⁺ 1.14 447

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((3aR,6aR)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.80 (s, 1H), 8.47 (s, 1H), 8.32 (s, 1H), 7.46 (d, J = 7.8 Hz, 1H), 7.24-7.18 (m, 2H), 7.05 (t, J = 8.0 Hz, 1H), 6.75 (s, 1H), 6.73 (s, 1H), 6.38-6.23 (m, 2H), 5.95 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.7, 1.6 Hz, 1H), 4.14- 4.03 (m, 2H), 3.85 (s, 3H), 3.15- 3.07 (m, 2H), 3.05-2.98 (m, 3H), 2.97-2.89 (m, 1H), 2.85-2.64 (m, 5H), 2.60-2.53 (m, 1H), 2.51-2.45 (m, 2H), 2.44 (s, 3H), 2.27-2.18 (m, 2H), 2.11-2.00 (m, 2H), 1.86-1.66 (m, 3H); 677.56[M + H]⁺ 1.19 448

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((3aS,6aS)-1- methylhexahydropyrr olo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.81 (s, 1H), 8.48 (s, 1H), 8.33 (s, 1H), 7.46 (d, 7.8 Hz, 1H), 7.24-7.17 (m, 2H), 7.12 (s, 1H), 7.05 (t, J = 7.9 Hz, 1H), 6.76-6.71 (m, 2H), 6.38-6.22 (m, 2H), 5.95 (dd, J = 8.8, 4.4 Hz, 1H), 5.77-5.71 (m, 1H), 4.14-4.03 (m, 2H), 3.85 (s, 3H), 3.13-3.05 (m, 1H), 3.05-2.90 (m, 5H), 2.81-2.64 (m, 5H), 2.52-2.40 (m, 5H), 2.28- 2.12(m,2H), 2.04-1.99 (m, 2H), 1.84-1.72 (m, 2H), 1.69-1.62 (m, 1H); 677.47[M + H]⁺ 1.18 449

N-(2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxy-5-((6-((R)-3- (3-(trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ′H NMR (400 MHz, CDCl₃) δ 9.53 (s, 1H), 8.77 (s, 1H), 8.33 (s, 1H), 7.73 (s, 1H), 7.65 (d, J = 7.5 Hz, 1H), 7.48 (dt, J = 15.3, 7.7 Hz, 2H), 6.72 (d, J = 25.1 Hz, 2H), 6.40 (dd, J = 16.8, 1.8 Hz, 1H), 5.76 (dd, J = 8.6, 4.5 Hz, 1H), 5.70 (dd, J = 10.2, 1.7 Hz, 1H), 4.20 (td, J = 8.0, 4.3 Hz, 1H), 4.11 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.32- 3.14 (m, 4H), 3.09 (q, J = 7.4 Hz, 2H), 2.81 (s, 6H), 2.72 (s, 3H), 2.41- 2.33 (m, 1H), 1.54 (t, J = 7.4 Hz, 4H); 586.4[M + H]⁺ 1.31 450

N-(4-methoxy-2-(4- methylpiperazine-1- yl)-5-((6-((R)-3-(3- (trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl3) δ 8.81 (s, 1H), 8.52 (s, 1H), 8,34 (s, 1H), 7.71 (s, 1H), 7.65 (d, J = 7.7 Hz, 1H), 7.48 (dt, J = 15.5, 7.8 Hz, 2H), 7.31 (s, 1H), 6.78 (s, 1H), 6.67 (s, 1H), 6.45- 6.32 (m, 2H), 5.73 (dd, J = 8.9, 2.5 Hz, 1H), 4.16 (td, J = 7.9, 4.2 Hz, 1H), 4.05 (dd, J = 16.1, 8.0 Hz, 1H), 3.84 (s, 3H), 3.10 (d, J = 5.9 Hz, 4H), 3.09-3.02 (m, 4H), 2.86-2.73 (m, 1H), 2.64 (s, 3H), 2.41-2.30 (m, 1H), 1.51 (t, j = 7.4 Hz, 1H); 584.4[M + H]⁺ 1.31 451

N-(2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- (trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.46 (s, 1H), 8.35 (d, J = 1.0 Hz, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.6 Hz, 1H), 7.48 (dt, J = 15.3, 7.7 Hz, 2H), 6.75 (d, J = 1.1 Hz, 1H), 6.72 (d, J = 1.9 Hz, 1H), 6.35 (d, J = 1.8 Hz, 1H), 6.29 (dd, J = 17.0, 9.6 Hz, 1H), 5.75 (ddd, J = 9.7, 6.6, 3.3 Hz, 2H), 4.17 (td, J = 8.1,4.3 Hz, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.10-3.05 (m, 2H), 2.83-2.68 (m, 4H), 2.44 (d, J = 1.3 Hz, 6H), 2.38 (q, J = 3.8 Hz, 1H), 2.08 (d, J = 12.7 Hz, 2H), 1.74 (dt, J = 12.5, 6.2 Hz, 2H); 612.5[M + H]⁺ 1.29 452

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5-((6- ((R)-3-(3- (trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.90 (s, 1H), 8.50 (s, 1H), 8.37 (s, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.5 Hz, 1H), 7.48 (dt, J = 15.3, 7.7 Hz, 2H), 7.09 (s, 1H), 6.82 (s, 1H), 6.72 (s, 1H), 6.40-6.26 (m, 2H), 5.78- 5.72 (m, 2H), 4.17 (td, J = 8.0, 4.2 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.04 (d, J = 13.0 Hz, 4H), 2.81 (dtd, J = 12.1, 8.1, 4.3 Hz, 4H), 2.66 (dd, J = 13.9, 6.8 Hz, 2H), 2.41-2.32 (m, 1H), 1.23 (t, J = 7.2 Hz, 3H); 598.4[M + H]⁺ 1.30 453

N-(4-methoxy-2-(4- (4-methylpiperazine- 1-yl)piperidine-1-yl)- 5-((6-((R)-3-(3- (trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 667.5[M + H]⁺ 1.21 454

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.43 (s, 1H), 8.34 (d, J = 1.0 Hz, 1H), 7.53 (t, J = 8.2 Hz, 1H), 7.09 (td, J = 7.1,6.6, 4.0 Hz, 3H), 6.75 (s, 1H), 6.73 (s, 1H), 6.40- 6.31 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.86 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.13-4.04 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.5 Hz, 2H), 2.82 (dd, J = 8.1,4.4 Hz, 1H), 2.80- 2.53 (m, 10H), 2.40 (d, J = 11.1 Hz, 1H), 2.35 (s, 3H), 2.30-2.25 (m, 1H), 2.12-2.06 (m, 2H), 1.68 (d, J = 11.5 Hz, 2H); 651.5[M + H]⁺ 1.18 455

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.43 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.52 (t, J = 8.5 Hz, 1H), 7.33 (s, 1H), 7.14-7.05 (m, 2H), 6.75 (s, 1H), 6.71 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.86 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16-4.07 (m, 1H), 4.09-4.03 (m, 1H), 3.85 (s, 3H), 3.79 (t, J = 4.7 Hz, 4H), 3.08 (d, J = 11.4 Hz, 2H), 2.88-2.77 (m, 1H), 2.74 (q, J = 12.3 Hz, 2H), 2.65 (t, J = 4.7 Hz, 4H), 2.41-2.31 (m, 1H), 2.32-2.20 (m, 1H), 2.13-2.08 (m, 2H), 1.69 (qd, J = 13.7, 13.0, 3.6 Hz, 2H); 638.4[M + H]⁺ 1.27 456

N-(5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.73 (s, 1H), 8.24 (d, J = 16.6 Hz, 2H), 7.44 (t, J = 8.3 Hz, 1H), 7.14-7.04 (m, 2H), 6.60 (s, 1H), 6.50 (s, 1H), 6.40 (d, J = 16.8 Hz, 1H), 5.81 (dd, J = 8.4, 4.5 Hz, 1H), 5.71 (d, J = 10.8 Hz, 1H), 4.15 (dd, J = 12.3, 7.8 Hz, 1H), 4.04 (q, J = 7.8 Hz, 1H), 3.82 (s, 3H), 3.74 (d, J = 11.0 Hz, 1H), 3.60 (s, 1H), 3.37 (s, 1H), 3.05- 2.92 (m, 2H), 2.85 (s, 6H), 2.37 (d, J = 4.4 Hz, 2H), 2.32-2.23 (m, 1H); 582.4[M + H]⁺ 1.26 457

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)(methyl)amino)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) 5 10.19 (s, 1H), 9.95 (s, 1H), 8.33 (s, 1H), 8.02 (s, 1H), 7.45 (tdd, J = 10.4, 7.3, 4.1 Hz, 2H), 7.33-7.20 (m, 2H), 6.97 (s, 1H), 6.26-6.11 (m, 2H), 5.70 (dd, J = 10.1, 2.2 Hz, 1H), 5.54 (dd, J = 8.4, 5.3 Hz, 1H), 4.32 (dt, J = 7.6, 3.7 Hz, 1H), 4.08 (t, J = 7.7 Hz, 1H), 3.82 (s, 3H), 3.32 (s, 4H), 2.97-2.88 (m, 1H), 2.72 (d, J = 4.8 Hz, 6H), 2.62 (s, 3H), 2.34 (ddd, J = 9.9, 7.7, 5.2 Hz, 1H),; 554.3 [M + H]⁺ 1.26 458

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.75 (s, 1H), 9.17 (s, 1H), 8.29 (s, 1H), 8.07 (s, 1H), 7.48-7.39 (m, 2H), 7.27-7.20 (m, 1H), 6.88 (s, 1H), 6.82-6.74 (m, 1H), 6.28- 6.12 (m, 2H), 5.76 (dd, J = 10.2, 2.0 Hz, 1H), 5.53 (dd, J = 8.5, 5.2 Hz, 1H), 4.26 (q, J = 4.5, 4.0 Hz, 1H), 4.01 (t, J = 7.8 Hz, 1H), 3.83 (s, 3H), 3.48 (d, J = 11.6 Hz, 2H), 3.37 (d, J = 10.6 Hz, 2H), 3.18 (d, J = 8.8 Hz, 4H), 2.93-2.87 (m, 1H), 2.82 (d, J = 4.5 Hz, 3H), 2.31 (dt, J = 12.8, 3.8 Hz, 1H),; 552.3 [M + H]⁺ 1.20 459

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 10.03 (s, 1H), 9.20 (s, 1H), 8.32 (s, 1H), 7.93 (s, 1H), 7.47-7.39 (m, 2H), 7.22 (d, J = 8.4 Hz, 1H), 6.90 (s, 1H), 6.73 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 1H), 6.12 (s, 1H), 5.79-5.72 (m, 1H), 5.53 (dd, J = 8.4, 5.2 Hz, 1H), 4.29 (td, J = 7.5, 4.3 Hz, 1H), 4.04 (q, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.33- 3.16 (m, 3H), 2.97-2.88 (m, 1H), 2.80 (d, J = 11.8 Hz, 2H), 2.75 (d, J = 5.0 Hz, 6H), 2.33 (ddd, J = 13.0, 8,5, 5.4 Hz, 1H), 2.12 (d, J = 11.5 Hz, 2H), 2.01 (d, J = 12.1 Hz, 2H),; 580.3 [M + H]⁺ 1.22 460

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.80 (s, 1H), 9.22 (s, 1H), 8.29 (s, 1H), 8.06 (s, 1H), 7.44 (tdd, J = 10.8, 6.8, 4.0 Hz, 2H), 7.23 (dq, J = 7.7, 2.6 Hz, 1H), 6.83 (d, J = 27.4 Hz, 2H), 6.27-6.14 (m, 2H), 5.78- 5.70 (m, 1H), 5.53 (dd, J = 8.5, 5.3 Hz, 1H), 4.27 (d, J = 4.4 Hz, 1H), 4.02 (t, J = 7.8 Hz, 1H), 3.83 (s, 3H), 3.52 (d, J = 11.3 Hz, 2H), 3.33 (s, 2H), 3.19 (ddd, J = 19.8, 7.7, 4.1 Hz, 6H), 2.94-2.82 (m, 1H), 2.31 (dd, J = 12.8, 5.1 Hz, 1H), 1.32 (t, J = 7.2 Hz, 3H),; 566.3 [M + H]⁺ 1.21 461

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.21 (s, 1H), 8.09 (s, 1H), 7.43 (d, J = 5.9 Hz, 1H), 7.41-7.32 (m, 3H), 6.84 (s, 1H), 6.62 (dd, J = 17.1, 10.3 Hz, 1H), 6.31-6.25 (m, 1H), 6.21 (d, J = 2.0 Hz, 1H), 5.74 (d, J = 10.4 Hz, 1H), 5.53 (dd, J = 8.6, 5.2 Hz, 1H), 4.20 (td, J = 7.8, 3.8 Hz, 2H), 3.95-3.86 (m, 2H), 3.81 (s, 3H), 3.16 (d, J = 11.2 Hz, 6H), 2.89- 2.64 (m, 5H), 2.39-2.16 (m, 2H), 2.10- 1.96 (m, 2H), 1.87 (t, J = 15.5 Hz, 3H), 1.26 (d, J = 6.5 Hz, 7H),; 661,5[M + H]⁺ 1.10 462

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.10 (d, J = 17.9 Hz, 1H), 8.24 (d, J = 6.0 Hz, 1H), 8.02 (s, 1H), 7.43 (d, J = 2.7 Hz, 1H), 7.41-7.31 (m, 3H), 6.85 (s, 1H), 6.62-6.50 (m, 1H), 6.23 (dd, J = 16.3, 3.1 Hz, 2H), 5.79-5.69 (m, 1H), 5.53 (dd, J = 8.6, 5.3 Hz, 1H), 4.72 (s, 1H), 4.66 (d, J = 7.7 Hz, 2H), 4.22 (dd, J = 9.0, 5.0 Hz, 2H), 3.96 (dt, J = 23.7, 8.8 Hz, 2H), 3.81 (s, 3H), 3.75 (t, J = 9.8 Hz, 1H), 3.55-3.36 (m, 2H), 3.28-3.10 (m, 3H), 2.93-2.65 (m, 3H), 2.38-2.21 (m, 1H), 2.21-1.99 (m, 3H), 1.88 (d, J = 21.4 Hz, 2H),;632.5[M + H]⁺ 1.14 463

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- cyclopropylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.13 (s, 2H), 8.22 (s, 1H), 8.13 (s, 1H), 7.43 (q, J = 3.9, 3.0 Hz, 1H), 7.37 (dt, J = 12.7, 7.3 Hz, 3H), 6.90 (s, 1H), 6.67 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (d, J = 1.9 Hz, 1H), 5.74 (dd, J = 10.0, 2.0 Hz, 1H), 5.53 (dd, J = 8.6, 5.3 Hz, 1H), 4.21 (td, J = 7.7, 3.9 Hz, 4H), 3.92 (q, J = 7.9 Hz, 3H), 3.80 (s, 3H), 3.65 (q, J = 5.9, 5.3 Hz, 4H), 2.84 (dt, J = 16.2, 5.0 Hz, 4H), 2.34- 2.20 (m, 1H), 2.05 (s, 3H),; 576.4[M + H]⁺ 1.25 464

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.83 (d, J = 26.2 Hz, 2H), 8.26-8.15 (m, 1H), 7.43 (d, J = 8.1 Hz, 1H), 7.35 (dt, J = 19.1,6.1 Hz, 4H), 6.96-6.74 (m, 1H), 6.39 (d, J = 33.6 Hz, 1H), 5.54 (dd, J = 8.9, 5.4 Hz, 1H), 4.17 (s, 1H), 3.83 (qd, J = 11.6, 11.0, 6.0 Hz, 5H), 3.30 (s, 3H), 3.17 (s, 2H), 3.13-3.00 (m, 3H), 2.88- 2.74 (m,2H), 2.33-2.19 (m, 2H), 1.91 (s, 3H),; 578.4[M + H]⁺ 1.41 465

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)-3- morpholinopyrolidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.67 (s, 1H), 8.35 (s, 1H), 8.14 (s, 1H), 7.47 (t, J = 1.9 Hz, 1H), 7.34 (dt, J = 7.5, 1.6 Hz, 1H), 7.29-7.18 (m, 2H), 6.93 (s, 1H), 6.75 (s, 1H), 6.67 (s, 1H), 6.42- 6.23 (m, 2H), 5.73 (dd, J = 9.9, 1.8 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.21- 3.99 (m, 2H), 3.83 (s, 3H), 3.76 (t, J = 4.7 Hz, 4H), 3.26-3.05 (m, 4H), 2.98 (p, J = 7.4 Hz, 1H), 2.76 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.53 (ddt, J = 39.6, 10.6, 4.6 Hz, 4H), 2.35 (dtd, J = 12.4, 8.1,4.5 Hz, 1H), 2.19 (dtd, J = 12.1, 7.5, 4.5 Hz, 1H), 2.02-1.88 (m, 1H),; 606.3[M + H]⁺ 1.18 466

N-(2-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5-yl)-5- ((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.67 (s, 1H), 8.36 (s, 1H), 7.97 (s, 1H), 7.47 (d, J = 2.0 Hz, 1H), 7.34 (dt, J = 7.6, 1.7 Hz, 1H), 7.29-7.19 (m, 2H), 6.90 (s, 1H), 6.66 (d, J = 29.6 Hz, 2H), 6.32 (tq, J = 26.5, 16.6, 15.3 Hz, 2H), 5.75 (dd, J = 10.0, 1.5 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.65 (s, 1H), 4.13 (qd, J = 9.0, 8.5, 5.7 Hz, 1H), 4.03 (dd, J = 15.5, 7.9 Hz, 2H), 3.86 (s, 3H), 3.42 (d, J = 10.1 Hz, 1H), 3.24 (d, J = 10.1 Hz, 1H), 2.76 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.61 (s, 2H), 2.35 (dtd, J = 12.5, 8.1, 4.6 Hz, 1H), 2.08 (d, J = 9.9 Hz, 1H), 1.99 (d, J = 10.3, Hz, 1H),; 549.3[M + H]⁺ 1.37 467

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.93 (s, 1H), 8.51 (s, 1H), 8.38 (d, J = 0.9 Hz, 1H), 7.47 (d, J = 1.9 Hz, 1H), 7.34 (dt, J = 7.7, 1.6 Hz, 1H), 7.28-7.19 (m, 2H), 7.00 (s, 1H), 6.77 (s, 1H), 6.71 (s, 1H), 6.43-6.20 (m, 2H), 5.76 (dd, J = 9.9, 1.6 Hz, 1H), 5.68 (dd, J = 8.7, 4.5 Hz, 1H), 4.21-4.01 (m, 2H), 3.88 (t, J = 4.5 Hz, 4H), 3.86 (s, 3H), 2.80 (td, J = 4.1, 1.7 Hz, 4H), 2.77 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.36 (dtd, J = 12.5, 8.1, 4.6 Hz, 1H),; 537.2[M + H]⁺ 1.51 468

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)- 3-(dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.62 (s, 1H), 8.44 (s, 1H), 8.33 (s, 1H), 7.47 (t, J = 1.9 Hz, 1H), 7.37-7.28 (m, 1H), 7.27- 7.15 (m, 2H), 7.01 (s, 1H), 6.68 (d, J = 29.5 Hz, 1H), 6.47-6.38 (m, 1H), 6.24- 6.08 (m, 1H), 5.82-5.55 (m, 2H), 4.14 (tt, J = 7.2, 3.7 Hz, 1H), 4.02 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.60 (p, J = 6.7 Hz, 1H), 3.24 (ddt, J = 21.5, 8.6, 4.7 Hz, 2H), 3.14-3.06 (m, 2H), 3.03 (q, J = 7.4 Hz, 2H), 2.76 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.63 (dd, J = 25.4, 15.0 Hz, 1H), 2.41 (s, 4H), 2.21 (td, J = 12.3, 6.6 Hz, 1H), 1.43 (d, J = 15.6 Hz, 3H),; 564.4[M + H]⁺ 1.17 469

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)- 3-(dimethylamino)p yrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.91 (s, 1H), 9.33 (s, 1H), 8.87 (s, 1H), 8.19 (s, 1H), 7.60 (s, 1H), 7.49-7.31 (m, 4H), 6.64 (s, 1H), 6.51 (dd, J = 17.0, 10.2 Hz, 1H), 6.25-6.20 (m, 1H), 5.80-5.69 (m, 1H), 5.53 (dd, J = 8.7, 5.2 Hz, 1H), 4.17 (td, J = 7.7, 3.8 Hz, 1H), 3.93 (q, J = 7.1, 6.5 Hz, 1H), 3.90-3.77 (m, 4H), 3.47- 3.40 (m, 2H), 3.32 (t, J = 4.6 Hz, 1H), 3.22 (q, J = 8.2 Hz, 1H), 2.84 (t, J = 5.7 Hz, 7H), 2.39-2.20 (m, 2H), 2.12 (dt, J = 13.4, 7.3 Hz, 1H),; 564.4[M + H]* 1.19 470

N-(5-((6-((R)-3-(3- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.75 (s, 1H), 8.25 (s, 1H), 8.18 (s, 1H), 7.46-7.30 (m, 4H), 6.84 (s, 1H), 6.63 (dd, J = 17.1, 10.2 Hz, 1H), 6.39 (s, 1H), 6.23 (dd, J = 17.1,2.0 Hz, 1H), 5.74 (d, J = 9.7 Hz, 1H), 5.54 (dd, J = 8.7, 5.1 Hz, 1H), 4.76 (s, 4H), 4.20-4.10 (m, 1H), 3.84 (S, 4H), 3.63 (s, 4H), 3.42-3.35 (m, 1H), 3.17(s,4H), 2.83-2.73 (m, 1H), 2.30-2.18 (m, 1H); 592.4[M + H]⁺ 1.22 471

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(3- chlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.53 (s, 1H), 9.20 (s, 1H), 9.08 (s, 1H), 8.25 (s, 1H), 8.10 (s, 1H), 7.48- 7.30 (m, 4H), 6.87 (s, 1H), 6.66 (dd, J = 17.0, 10.2 Hz, 1H), 6.30-6.23 (m, 1H), 5.82-5.66 (m, 1H), 5.54 (dd, J = 8.6, 5.3 Hz, 1H), 4.21 (td, J = 7.8, 3.9 Hz, 1H), 4.06 (s, 1H), 3.93 (t, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.52 (s, 3H), 3.39 (dq, J = 11.7, 7.6, 6.2 Hz, 2H), 3.18 (d, J = 11.5 Hz, 3H), 3.10- 2.91 (m, 2H), 2.85 (tt, J = 8.1,4.0 Hz, 1H), 2.77 (t, J = 12.8 Hz, 2H), 2.32- 2.20 (m, 1H), 2.12 (d, J = 11.4 Hz, 2H), 2.08 (s, 3H), 2.00 (dt, J = 12.1, 6.4 Hz, 2H),;661.4[M + H]⁺ 1.22 472

N-(2-(4-((1R,4R)-2- oxa-5-azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3- chlorophenyl)isbxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.08 (d, J = 16.7 Hz, 1H), 8.71 (s, 1H), 8.18 (s, 1H), 8.11 (s, 1H), 7.47-7.29 (m, 4H), 6.82 (s, 1H), 6.52 (dt, J = 19.2, 10.2 Hz, 1H), 6.37 (s, 1H), 6.22 (d, J = 16.9 Hz, 1H), 5.74 (d, J = 10.1 Hz, 1H), 5.54 (dd, J = 8.6, 5.2 Hz, 1H), 4.76-4.61 (m, 2H), 4.15 (dd, J = 7.9, 3.9 Hz, 1H), 3.90-3.79 (m, 4H), 3.75 (t, J = 10.5 Hz, 2H), 3.44- 3.36 (m, 3H), 3.23 (d, J = 11.8 Hz, 1H), 3.18-3.07 (m, 2H), 2.81-2.73 (m, 2H), 2.65 (d, J = 12.3 Hz, 1H), 2.33 (s, 1H), 2.29-2.20 (m, 1H), 2.16 (d, J = 14.6 Hz, 1H), 2.01 (d, J = 11.4 Hz, 1H), 1.87-1.73 (m, 2H),; 632.5[M + H]⁺ 1.24 473

N-(5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-((1R,4R)-5- methyl-2,5- diazabicyclo[2.2.1]hept- ane-2-yl)piperidine- 1-yl)phenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.47 (s, 1H), 8.37 (s, 1H), 7.56 (q, J = 8.3 Hz, 1H), 6.93 (s, 1H), 6.87-6.73 (m, 4H), 6.38-6.31 (m, 1H), 6.24 (dd, J = 17.0, 10.0 Hz, 1H), 5.87 (dd, J = 8.7, 4.3 Hz, 1H), 5.73 (d, J = 10.1 Hz, 1H), 4.14-4.05 (m, 2H), 3.86 (s, 3H), 3.02 (s, 2H), 2.78 (q, J = 11.7, 9.9 Hz, 4H), 2.50 (d, J = 9.6 Hz, 2H), 2.32-2.24 (m, 1H), 2.06 (d, J = 10.5 Hz, 2H), 1.90 (s, 2H), 1.25 (s, 3H),; 647.5[M + H] 1.13 474

N-(2-((S)-4- cyclopropyl-2- methylpiperazine-1- yl)-5-((6-((R)-3-(2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 9.02 (s, 1H), 8.96 (s, 1H), 8.38 (s, 1H), 7.57 (q, J = 8.3 Hz, 1H), 7.07 (s, 1H), 6.81 (dd, J = 12.2, 8.4 Hz, 4H), 6.35-6.23 (m, 2H), 5.88 (dd, J = 8.7, 4.1 Hz, 1H), 5.74 (dd, J = 9.6, 1.9 Hz, 1H), 4.15-4.08 (m, 2H), 3.80 (s, 3H), 3.16-2.97 (m, 4H), 2.85-2.79 (m, 2H), 2.53-2.45 (m, 1H), 2.31- 2.24 (m, 1H), 2.20 (t, J = 10.4 Hz, 1H), 1.70 (d, J = 4.1 Hz, 1H), 0.82 (d, J = 6.1 Hz, 3H), 0.50 (dd, J = 17.3, 5.1 Hz, 4H),; 592.4[M + H] 1.31 475

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- isopropylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.57 (s, 1H), 8.36 (s, 1H), 7.60 (d, J = 7.8 Hz, 1H), 7.39- 7.34 (m, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.95 (s, 1H), 6.84 (s, 1H), 6.76 (s, 1H), 6.37 (d, J = 16.7 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.97 (dd, J = 8.9, 4.4 Hz, 1H), 5.77-5.72 (m, 1H), 4.10 (dt, J = 10.3, 6.3 Hz, 2H), 3.83 (s, 3H), 2.94 (dt, J = 8.1,4.1 Hz, 4H), 2.78-2.67 (m, 4H), 2.23 (dtd, J = 12.6, 8.2, 4.4 Hz, 1H), 1.64 (s, 2H), 1.13 (d, J = 6.4 Hz, 6H),;612.3[M + H] 1.37 476

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)pip- eridine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.43 (s, 1H), 8.35 (s, 1H), 7.59 (dd, J = 7.8, 1.6 Hz, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 7.05 (s, 1H), 6.75 (s, 1H), 6.36-6.26 (m, 2H), 6.16 (dd, J = 17.3, 10.1 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.73 (ddd, J = 16.3, 9.8, 2.0 Hz, 1H), 4.16-4.05 (m, 2H), 3.85 (s, 3H), 2.96 (ddt, J = 12.2, 8.1, 4.0 Hz, 2H), 2.81-2.71 (m, 2H), 2.53 (s, 6H), 2.23 (dq, J = 12.2, 3.8 Hz, 1H), 1.88- 1.76 (m, 2H), 1.33-1.22 (m, 4H),; 612.4[M + H] 1.34 477

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)-[1,4′- bipiperidine]-1 yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.56 (m, 1H), 6.92 (s, 1H), 6.84 (m, 2H), 6.75 (m, 2H), 6.34 (m, 1H), 6.27 (d, J = 10.1 Hz, 1H), 5.89 (m, 1H), 5.74 (d, J = 11.1 Hz, 1H), 4.08 (d, J = 16.0 Hz, 2H), 3.85 (s, 3H), 3.12 (m, 5H), 2.79 (m, 2H), 2.72 m, 2H), 2.63 (m, 5H), 2.50 (m, 3H), 2.30 (m, 5H), 2.02 ( m, 3H), 1.86 (m, 3H), 1.71 (m, 3H),; 718.6 [M + H]⁺ 1.11 478

N-(5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- [1,4′-bipiperidine]- 1′-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.25 (s, 1H), 8.86 (s, 1H), 8.43 (s, 2H), 8.36 (s, 1H), 8.31 (s, 1H), 7.54 (m, 2H), 6.94 (s, 1H), 6.36 (d, J = 17.4 Hz, 1H), 6.26 (dd, J = 16.7, 10.4 Hz, 1H), 5.83 (m, 1H), 5.75 (d, J = 10.4 Hz, 1H), 4.14-4.04 (m, 2H), 3.85 (s, 3H), 3.78-3.69 (m, 4H), 3.44- 3.36 (m, 3H), 3.31-3.26 (m, 5H), 2.40 (s, 6H), 1.81-1.73 (m, 4H), 1.71-1.56 (m, 4H),; 663.5 [M + H]⁺ 1.11 479

N-(2-((S)-4- cyclopropyl-3- methylpiperazine-1- yl)-5-((6-((R)-3-(2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.60 (s, 1H), 8.37 (s, 1H), 7.56 (m, 1H), 6.93 (s, 1H), 6.80 (m, 4H), 6.35 (m, 1H), 6.28 (m, 1H), 5.89 (m, 1H), 5.75 (d, J = 11.0 Hz, 1H), 4.11 (m, 2H), 3.82 (s, 3H), 3.12 (d, J = 11.7 Hz, 1H), 2.89 (m, 2H), 2.82 (m, 2H), 2.69 (m, 1H), 2.64- 2.55 (m, 1H), 2.27 (m, 1H), 1.66 (s, 1H), 1.57 (s, 1H), 1.26 (d, J = 6.2 Hz, 3H), 0.65 (d, 7 = 32.1 Hz, 2H), 0.50 (m, 1H), 0.36 (m, 1H),; 592.4 [M + H]⁺ 1.24 480

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.56 (s, 1H), 8.36 (s, 1H), 7.60 (d, 7 = 7.8 Hz, 1H), 7.37 (d, 7 = 9.0 Hz, 1H), 7.19 (t, 7 = 7.9 Hz, 1H), 6.95 (s, 1H), 6.82 (s, 1H), 6.76 (s, 1H), 6.36 (d, 7 = 16.2 Hz, 1H), 6.29 (d, 7 = 10.0 Hz, 1H), 5.98 (m, 1H), 5.75 (d, 7 = 11.1 Hz, 1H), 4.09 (m, 2H), 3.84 (s, 3H), 3.07 (m, 1H), 2.94 (m, 5H), 2.66 (s, 3H), 2.53 (m, 2H), 2.24 (m, 1H), 1.16 (t, J = 7.2 Hz, 3H),; 598.3 [M + H]⁺ 1.35 481

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.33 (s, 1H), 8.92 (s, 1H), 8.37 (s, 1H), 7.58 (s, 1H), 7.38 (s, 1H), 7.19 (s, 1H), 6.98 (s, 1H), 6.81 (s, 1H), 6.75 (s, 1H), 6.36 (s, 1H), 6.30 (d, J = 10.4 Hz, 1H), 5.98 (m, 1H), 5.75 (d, J = 11.1 Hz, 1H), 4.08 (m, 2H), 3.84 (s, 3H), 3.65 (m, 2H), 3.08 (m, 2H), 2.91 (m, 2H), 2.49 (m, 2H), 2.22 (m, 2H), 1.45 (d, J = 6.6 Hz, 3H),; 584.3 [M + H]⁺ 1.33 482

N-(4-methoxy-2-(4- (4-methylpiperazine-1- yl)piperidine-1-yl)- 5-((6-((R)-3- (naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 8.14 (d, J = 8.3 Hz, 1H), 7.88 (dd, J = 8.0, 1.5 Hz, 1H), 7.57-7.42 (m, 4H), 6.98 (s, 1H), 6.77 (s, 1H), 6.74 (s, 1H), 6.43- 6.37 (m, 2H), 6.34 (d, J = 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.16 (d, J = 6.5 Hz, 2H), 3.84 (s, 4H), 3.35-3.17 (m, 2H), 3.16-3.00 (m, 4H), 2.84 (s, 1H), 2.72 (tdd, J = 11.6, 9.3, 8.8, 4.5 Hz, 8H), 2.67-2.50 (m, 5H), 2.07 (d, J = 12.9 Hz, 2H), 1.71-1.65 (m, 2H),; 649.5[M + H]⁺ 1.20 483

N-(4-methoxy-2-(4- morpholinopiperidine- 1-yl)-5-((6-((R)-3- (naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 8.14 (d, J = 8.3 Hz, 1H), 7.87 (dd, J = 7.9, 1.4 Hz, 1H), 7.63-7.36 (m, 4H), 7.00 (s, 1H), 6.76 (d, J = 10.8 Hz, 2H), 6.43- 6.18 (m, 4H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16 (d, J = 7.0 Hz, 1H), 3.84 (s, 3H), 3.77 (t, J = 4.6 Hz, 4H), 3.06 (dq, J = 9.4, 3.3 Hz, 2H), 3.01-2.89 (m, 1H), 2.79-2.66 (m, 2H), 2.61 (dd, J = 7.6, 3.3 Hz, 5H), 2.40 (dtd, J = 11.8, 7.8, 3.9 Hz, 1H), 2.30 (tt, J = 11.1, 3.8 Hz, 1H), 2.07 (d, J = 12.7 Hz, 3H), 1.65 (qd, J = 12.1,3.9 Hz, 3H), 1.33-1.22 (m, 2H),; 363.5[M + H]⁺ 1.23 484

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)- 4-methoxy-5-((6- ((R)-3-(naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.02 (s, 1H), 8.63 (s, 1H), 8.27 (d, J = 8.2 Hz, 1H), 8.16 (d, J = 9.4 Hz, 2H), 7.99-7.94 (m, 1H), 7.84 (d, J = 8.2 Hz, 1H), 7.64 (d, J = 7.2 Hz, 1H), 7.63-7.52 (m, 2H), 7.48 (t, J = 7.7 Hz, 1H), 6.83 (s, 1H), 6.73-6.66 (m, 1H), 6.26-6.20 (m, 2H), 5.76 (s, 2H), 3.95 (q, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.57 (p, J = 6.6 Hz, 3H), 3.05-2.96 (m, 4H), 2.22 (ddt, J = 12.1, 8.0, 4.2 Hz, 1H), 1.32-1.25 (m, 12H), 1.21 (d, J = 6.8 Hz, 4H), 1.08 (td, J = 7.4, 5.2 Hz, 3H),; 663.5[M + H]⁺ 1.14 485

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (S, 1H), 8.43 (s, 1H), 8.32 (s, 1H), 7.48 (d, J = 7.8 Hz, 1H), 7.16-7.07 (m, 2H), 6.74 (s, 1H), 6.69 (s, 1H), 6.39-6.31 (m, 1H), 6.25 (dd, = 16.9, 9.9 Hz, 1H), 5.83 (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.13(dd, J = 8.0, 4.2 Hz, 2H), 3.84 (s, 4H), 3.06 (d, J = 11.6 Hz, 3H), 2.90-2.52 (m, 13H), 2.47 (s, 4H), 2.37 (s, 4H), 2.17 (dtd, J = 12.5, 8.1,4.5 Hz, 2H), 2.06 (d, J = 12.0 Hz, 3H), 1.68 (qd, J = 12.1, 3.9 Hz, 3H),; 647.5[M + H]⁺ 1.24 486

N-(5-((6-((R)-3-(3-chloro-2- methylphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.44 (s, 1H), 8.33 (d, J = 1.0 Hz, 1H), 7.49 (dd, J = 7.8, 1.3 Hz, 1H), 7.15-7.05 (m, 2H), 6.75 (s, 1H), 6.70 (d, J = 1.1 Hz, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.84, (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (dd, J = 10.0,1.6 Hz, 1H), 4.14 (td, J = 8.1,4.2 Hz, 1H), 3.84 (s, 3H), 3.78 (t, J = 4.7 Hz, 4H), 3.07 (d, J = 11.4 Hz, 2H), 2.87-2.66 (m, 4H), 2.63 (t, J = 4.6 Hz, 4H), 2.47 (s, 4H), 2.31 (dtd, J = 12.9, 9.2, 8.3, 4.6 Hz, 3H), 2.18 (dtd, J = 12.5, 8.1, 4.5 Hz, 3H), 1.72-1.60 (m, 3H),; 634.4 [M + H]⁺ 1.27 487

N-(5-((6-((R)-3-(3-chloro-2- methylphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyljacrylamide 661.5[M + H]⁺ 1.25 488

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-4-methoxy-5-((6- ((R)-3-(naphthalene- 1-yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.49 (s, 1H), 8.37 (d, J = 0.9 Hz, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.88 (d, J = 8.0 Hz, 1H), 7.81-7.73 (m, 2H), 7.60-7.41 (m, 3H), 6.92 (s, 1H), 6.78 (d, J = 8.9 Hz, 2H), 6.45- 6.40 (m, 1H), 6.40-6.31 (m, 1H), 6.24 (dd, J = 17.0, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 4.44(s, 1H), 4.25-4.12 (m, 2H), 4.09 (d, J = 7.9 Hz, 1H), 3.86 (s, 3H), 3.77 (s, 1H), 3.67 (dd, J = 7.9, 1.6 Hz, 1H), 3.14 (dd, J = 9.8, 1.7 Hz, 1H), 3.07-3.00 (m, 2H), 2.99-2.92 (m, 1H), 2.83- 2.70 (m, 2H), 2.61-2.56 (m, 1H), 2.51 (d, J = 9.9 Hz, 1H), 2.47-2.35 (m, 1H), 2.04 (d, 1H), 2.00-1.88 (m, 2H), 1.83 (d, J = 9.8 Hz, 1H), 1.72- 1.62 (m, 2H),; 648.5 [M + H]⁺ 1.25 489

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-4-methoxy-5-((6- ((R)-3-(naphthalene- 1-yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.49 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (d, J = 8.0 Hz, 1H), 7.77 (dd, J = 7.6, 5.7 Hz, 2H), 7.60-7.41 (m, 3H), 6.92 (s, 1H), 6.78 (d, J = 7.5 Hz, 2H), 6.45-6.31 (m, 2H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 4.44 (s, 1H), 4.24-4.12 (m, 2H), 4.09 (d, J = 7.9 Hz, 1H), 3.86 (s, 3H), 3.77 (s, 1H), 3.67 (dd, J = 7.9, 1.6 Hz, 1H), 3.14 (dd, J = 10.0, 1.8 Hz, 1H), 3.07- 2.99 (m, 2H), 2.99-2.92 (m, 1H), 2.82-2.71 (m, 2H), 2.61-2.56 (m, 1H), 2.51 (d, J = 9.9 Hz, 1H), 2.47- 2.35 (m, 1H), 2.04 (d, J = 13.7 Hz, 1H), 1.99-1.88 (m, 2H), 1.83 (d, J = 9.8 Hz, 1H), 1.73-1.64 (m, 2H),; 648.5 [M + H]* 1.25 490

N-(2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxy-5-((6-((R)- 3-(naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.46 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.91-7.85 (m, 1H), 7.81-7.73 (m, 2H), 7.60- 7.41 (m, 3H), 6.91 (s, 1H), 6.77 (d, J = 10.2 Hz, 2H), 6.43-6.31 (m, 2H), 6.24 (dd, J = 17.0, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.24-4.11 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 9.6 Hz, 2H), 3.01-2.92 (m, 1H), 2.82- 2.53 (m, 11H), 2.45-2.36 (m, 1H), 2.30 (d, J = 10.9 Hz, 1H), 2.10 (d, J = 12.5 Hz, 2H), 1.73-1.64 (m, 2H), 1.08 (d, J = 6.5 Hz, 6H),; 677.5 [M + H]⁺ 1.22 491

N-(2-(4-((2S,6R)-2,6- dimethylmorpholino)piperidine-1-yl)-4- methoxy-5-((6-((R)-3- (naphthalene-1- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.44 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (dd, J = 7.7, 1.4 Hz, 1H), 7.77 (dd, J = 7.7, 5.2 Hz, 2H), 7.60-7.41 (m, 3H), 6.92 (s, 1H), 6.77 (d, J = 12.4 Hz, 2H), 6.45-6.33 (m, 2H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.24-4.11 (m, 2H), 3.85 (s, 3H), 3.78-3.65 (m, 2H), 3.06 (s, 2H), 3.03-2.91 (m, 1H), 2.88 (d, J = 10.8 Hz, 2H), 2.72 (dt, J = 12.7, 10.3 Hz, 2H), 2.41 (dtd, J = 11.9, 7.9, 3.9 Hz, 1H), 2.29 (d, J = 4.0 Hz, 1H), 2.07 (d, J = 12.4 Hz, 2H), 1.90 (t, J = 10.6 Hz, 2H), 1.67 (dt, J = 12.2, 6.0 Hz, 2H), 1.21 (d, J = 6.2 Hz, 6H),; 664.5 [M + H]⁺ 1.30 492

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-((R)- 3-(dimethylamino)pyrol- idine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.85 (s, 1H), 8.49 (s, 1H), 8.35 (s, 1H), 7.79 (s, 1H), 7.71 (d, J = 7.9 Hz, 1H), 7.54 (d, J = 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 7.01 (s, 1H), 6.75 (s, 1H), 6.73 (s, 1H), 6.38-6.12 (m, 2H), 5.75-5.65 (m, 2H), 4.16 (td, J = 8.0, 4.1 Hz, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.13-3.06 (m, 1H), 3.06-2.98 (m, 2H), 2.98- 2.90 (m, 2H), 2.85-2.69 (m, 3H), 2.68-2.62 (m, 1H), 2.54-2.47 (m, 1H), 2.38-2.23 (m, 8H), 2.13- 2.02 (m, 3H), 1.90-1.68 (m, 3H); 638.56 [M + H]⁺ 0.99 493

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide 623.60[M + H]⁺ 1.11 494

N-(5-((6-((R)-3-(3- cyanophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.46 (s, 1H), 8.36(s, 1H), 7.79 (s, 1H), 7.71 (d, J = 7.9 Hz, 1H), 7.54 (d, J = 7.7 Hz, 1H), 7.45 (t, J = 7.8 Hz, 1H), 6.93 (s, 1H), 6.76 (s, 1H), 6.73 (s, 1H), 6.38-6.20 (m, 2H), 5.76-5.69 (m, 2H), 4.16 (td, J = 8.0, 4.1 Hz, 1H), 4.08 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.10-3.02 (m, 2H), 2.86-2.68 (m, 7H), 2.38- 2.29 (m, 2H), 2.14-2.06 (m, 2H), 1.73-1.60 (m, 7H), 1.10 (s, 3H), 1.08 (s, 3H); 652.68 [M + H]⁺ 1.07 495

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(3-methoxy-3- methylbutoxy)phenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.79 (s, 1H), 8.33 (s, 1H), 8.15 (s, 1H), 7.03-6.97 (m, 2H), 6.75 (s, 1H), 6.71-6.64 (m, 1H), 6.61 (s, 1H), 6.58 (s, 1H), 6.42-6.26 (m, 2H), 5.72 (dd, J = 9.7, 1.9 Hz, 1H), 5.66 (dd, J = 8.6, 4.5 Hz, 1H), 4.18-4.09 (m, 3H), 4.06-3.99 (m, 1H), 3.84 (s, 3H), 3.27 (s, 3H), 2.80-2.72 (m, 1H), 2.37-2.28 (m, 1H), 2.04 (t, J = 6.5 Hz, 2H)1.29 (s, 6H); 570.38 [M + H]⁺ 1.60 496

N-(5-((6-((R)-3-(3,5- difluoropheny)isoxazolidine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(3-methoxy-3- methylbutoxy)phenyl)- (E)-4-(dimethylamino)but-2- enamide ¹H NMR (400 MHz, CDCl₃) δ 8.75 (s, 1H), 8.31 (s, 1H), 7.99 (s, 1H), 7.04- 6.85 (m, 4H), 6.70-6.64 (m, 1H), 6.60 (s, 1H), 6.57 (s, 1H), 6.15 (d, J = 15.3 Hz, 1H), 5.66 (dd, J = 8.6, 4.6 Hz, 1H), 4.18-4.09 (m, 3H), 4.03 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.27 (s, 3H), 3.15 (d, J = 6.1 Hz, 2H), 2.80- 2.71 (m, 1H), 2.35-2.28 (m, 7H), 2.07-2.02 (m, 2H), 1.29 (s, 6H); 627.53 [M + H]⁺ 1.29 497

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]heptane- 5-yl)piperidine-1- yl)-5-((6-((R)-3-(3,4- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 634.4 [M + H]⁺ 1.21 498

N-(2-(4-((1R,4R)-2- oxa-5-azabicyclo[2.2.1]heptane- 5-yl)piperidine-1- yl)-5-((6-((R)-3-(3,4- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 634.5 [M + H]⁺ 1.22 499

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4-((R)-3- (dimethylamino)pyroli- dine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 10.50 (s, 1H), 9.47 (s, 1H), 8.37 (s, 1H), 7.83 (s, 1H), 7.48-7.39 (m, 2H), 7.26-7.20 (m, 1H), 7.02 (s, 1H), 6.79-6.68 (m, 1H), 6.27 (dd, J = 17.0, 1.9 Hz, 1H), 6.17-6.08 (m, 1H), 5.80-5.76 (m, 1H), 5.58-5.54 (m, 2H), 4.32 (dd, J = 7.6, 4.5 Hz, 1H), 4.12-3.95 (m, 3H), 3.84 (s, 3H), 3.65 (d, J = 9.5 Hz, 2H), 3.46 (s, 1H), 3.34-3.27 (m, 2H), 2.95 (dd, J = 8.1,4.4 Hz, 1H), 2.85 (s, 9H), 2.46 (d, J = 8.9 Hz, 2H), 2.38-2.31 (m, 1H), 2.21 (d, J = 25.6 Hz, 4H),; 631.3 [M + H]⁺ 1.17 500

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino)pyroli- dine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.25 (s, 1H), 9.34 (s, 1H), 8.34 (s, 1H), 7.85 (s, 1H), 7.44 (dtd, J = 10.5, 8.5, 7.2, 3.0 Hz, 2H), 7.26-7.16 (m, 1H), 6.96 (d, J = 7.6 Hz, 1H), 6.76- 6.66 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.11 (s, 1H), 5.76 (dd, J = 10.1, 1.9 Hz, 1H), 5.54 (dd, J = 8.5, 5.3 Hz, 1H), 4.31 (q, J = 3.2 Hz, 2H), 4.04 (dd, J = 18.6, 11.1 Hz, 3H), 3.82 (s, 3H), 3.75 (s, 1H), 3.66-3.50 (m, 2H), 3.39 (d, J = 11.8 Hz, 1H), 3.26 (d, J = 11.4 Hz, 2H), 2.93 (ddd, J = 18.3, 9.0, 5.0 Hz, 1H), 2.87-2.77 (m, 8H), 2.47-2.39 (m, 1H), 2.36- 2.28 (m, 1H), 2.24-2.05 (m, 4H),; 631.3 [M + H]⁺ 1.1 501

N-(5-((6-((R)- 3-(3,4- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4-isopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide 663.5[M + H]⁺ 1.16 502

N-(5-((6-((R)- 3-(3,4-difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (4-methylpiper- azine-1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.19 (s, 1H), 9.24 (s, 1H), 8.33 (s, 1H), 7.90 (s, 1H), 7.48-7.41 (m, 2H), 7.25-7.19 (m, 1H), 6.92 (s, 1H), 6.75-6.67 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.11 (s, 1H), 5.76 (dd, J = 10.0, 2.0 Hz, 1H), 5.53 (dd, J = 8.5, 5.4 Hz, 1H), 4.31 (d, J = 4.5 Hz, 1H), 4.06 (d, J = 7.8 Hz, 1H), 3.81 (s, 3H), 3.76 (d, J = 18.4 Hz, 3H), 3.62 (d, J = 8.9 Hz, 5H), 3.44 (s, 1H), 3.24 (d, J = 11.3 Hz, 2H), 2.92 (dd, J = 8.2, 4.4 Hz, 1H), 2.83 (d, J = 14.2 Hz, 5H), 2.37-2.28 (m, 1H), 2.23-2.06 (m, 4H),; 635.3 [M + H]⁺ 1.13 503

N-(5-((6-((R)- 3-(3,4- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiper- idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.11 (S, 1H), 9.23 (s, 1H), 8.33 (s, 1H), 7.89 (s, 1H), 7.44 (ddq, J = 11.4, 6.3, 3.0, 2.3 Hz, 2H), 7.26-7.20 (m, 1H), 6.92 (s, 1H), 6.69 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.11 (s, 1H), 5.76 (dd, J = 10.1, 1.9 Hz, 1H), 5.56-5.52 (m, 1H), 4.29 (dd, J = 7.6, 4.4 Hz, 1H), 4.08- 4.03 (m, 1H), 3.99 (d, J = 7.5 Hz, 4H), 3.44 (d, J = 12.0 Hz, 2H), 3.24 (d, J = 11.3 Hz, 3H), 3.17-3.08 (m, 2H), 2.97-2.87 (m, 1H), 2.79 (t, J = 11.8 Hz, 2H), 2.33 (ddd, J = 10.0, 7.8, 5.2 Hz, 1H), 2.22 (d, J = 10.3 Hz, 2H), 2.13-2.01 (m, 2H),; 622.3 [M + H]⁺ 1.17 504

N-(4-methoxy- 2-(4- morpholinopiper- idine-1-yl)-5- ((6-((R)-3-(3- (trifluoromethyl)phenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)pheny)- acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.74 (s, 1H), 8.44 (s, 1H), 8.29 (s, 1H), 7.75 (s, 1H), 7.71 (s, 1H), 7.65 (d, J = 7.6 Hz, 1H), 7.48 (dt, J = 15.3, 7.7 Hz, 2H), 6.75 (s, 1H), 6.66 (s, 1H), 6.40-6.33 (m, 1H), 6.28 (dd, J = 16.9, 9.7 Hz, 1H), 5.74 (dt, J = 9.0, 2.4 Hz, 2H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.81 (t, J = 4.7 Hz, 4H), 3.08 (t, J = 8.8 Hz, 2H), 2.83 (tt, J = 8.1,4.0 Hz, 1H), 2.77 (d, J = 11.7 Hz, 2H), 2.73 (d, J = 3.8 Hz, 4H), 2.45 (tt, J = 11.2, 3.8 Hz, 1H), 2.36 (dq, J = 11.9, 3.5 Hz, 1H), 2.12-2.07 (m, 2H), 1.74 (qd, J = 12.1,4.0 Hz, 2H); 654.5 [M + H]+ 1.29 505

N-(2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3-(trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 598.4[M + H]⁺ 1.24 506

N-(4-methoxy-2- ((R)-3- morpholinopyrolidine- 1-yl)-5-((6-((R)-3-(3- (trifluoromethyl)phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.15 (d, J = 0.5 Hz, 1H), 7.78-7.69 (m, 3H), 7.60-7.53 (m, 2H), 6.71 (s, 1H), 6.58 (dd, J = 17.0, 10.3 Hz, 1H), 6.41-6.32 (m, 2H), 5.80 (dd, = 10.3, 1.4 Hz, 1H), 5.65 (dd,J = 8.5, 4.8 Hz, 1H), 4.17 (td, J = 7.9, 4.2 Hz, 1H), 4.01-3.94 (m, 1H), 3.88 (s, 3H), 3.84 (t, J = 4.4 Hz, 4H), 3.39- 3.29 (m, 8H), 2.95-2.83 (m, 4H), 2.40-2.28 (m, 2H), 2.05 (t, J = 15.6 Hz, 1H); 640.4 [M + H]⁺ 1.25 507

N-(4-methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)-5-((6-((R)-3-(3- (trifluoromethyl)- phenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.14 (s, 1H), 7.73 (t, J = 11.3 Hz, 3H), 7.60-7.51 (m,2H), 6.67 (s, 1H), 6.54 (dd, J = 17.0, 10.2 Hz, 1H), 6.40-6.31 (m, 2H), 5.79 (dd, J = 10.3, 1.5 Hz, 1H), 5.64 (dd, J = 8.5, 4.8 Hz, 1H), 4.15 (td, J = 7.9, 4.2 Hz, 1H), 3.97 (d, J = 7.9 Hz, 1H), 3.87 (s, 3H), 3.77 (t, J = 4.6 Hz, 4H), 3.39-3.25 (m, 7H), 3.11-3.01 (m, 1H), 2.91-2.78 (m, 1H), 2.76- 2.56 (m, 4H), 2.40-2.30 (m, 1H), 2.25 (dtd, J = 12.9, 6.5, 3.3 Hz, 1H), 2.01-1.86 (m, 1H); 640.4 [M + H]⁺ 1.22 508

N-(5-((6-((R)-3-(3- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ; 647.5 [M + H]⁺ 1.14 509

N-(4-methoxy-2-(4- methylpiperazine-1- yl)-5-((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.54 (s, 1H), 8.38 (d, J = 0.9 Hz, 1H), 7.94 (d, J = 1.7 Hz, 1H), 7.85-7.79 (m, 3H), 7.44 (td, J = 7.4, 6.7, 3.8 Hz, 2H), 6.97 (s, 1H), 6.77 (d, J = 24.0 Hz, 2H), 6.44- 6.22 (m, 2H), 5.85 (dd, J = 8.7, 4.5 Hz, 1H), 5.76 (dd, J = 9.9, 1.6 Hz, 1H), 4.20 (td, J = 7.9, 4.4 Hz, 1H), 4.11 (q, J = 7.9 Hz, 1H), 3.84 (s, 3H), 3.64-3.57 (m, 2H), 3.03 (d, J = 7.4 Hz, 2H), 2.94-2.90 (m, 3H), 2.40 (s, 3H), 1.51 (t, J = 7.4 Hz, 4H),; 566.4 [M + H]⁺ 1.21 510

N-(2-(4- (dimethylamino)pip- eridine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.94 (s, 1H), 7.81 (dt, J = 9.3, 3.7 Hz, 2H), 7.44 (ddt, J = 9.1,6.8, 3.3 Hz, 2H), 7.02 (s, 1H), 6.73 (d, J = 5.2 Hz, 2H), 6.41-6.27 (m, 2H), 6.22-6.17 (m, 1H), 5.85 (dd, J = 8.6, 4.5 Hz, 1H), 5.75 (dd, J = 9.7, 1.8 Hz, 1H), 5.62 (dd, J = 9.1,3.1 Hz, 1H), 4.20 (td, J = 8.0, 4.5 Hz, 1H), 4.11 (q, J = 7.9 Hz, 1H), 3.84 (s, 3H), 3.72 (dd, J = 14.8, 5.8 Hz, 2H), 3.55 (h, J = 6.7 Hz, 2H), 2.99 (t, J = 7A Hz, 1H), 2.77- 2.71 (m, 2H), 2.46 (s, 6H), 2.09 (d, J = 12.4 Hz, 2H), 1.76 (qd, J = 12.1, 3.9 Hz, 2H), 1.41 (d, J = 7 A Hz, 1H),; 594.4 [M + H]⁺ 1.21 511

N-(2-((2- (dimethylamino)ethyl)(methyl)amino)- 4-methoxy-5-((6- ((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.57 (s, 1H), 8.87 (s, 1H), 8.36 (s, 1H), 7.94 (s, 1H), 7.81 (dd, J = 8.2, 3.8 Hz, 3H), 7.57 (dd, J = 8.5, 1.8 Hz, 1H), 7.44 (dq, J = 7.6, 5.3, 3.9 Hz, 2H), 7.10 (s, 1H), 6.73 (d, J = 28.7 Hz, 2H), 6.42 (dd, J = 16.8, 2.1 Hz, 1H), 5.85 (dd, J = 8.7, 4.6 Hz, 1H), 5.71 (dd, J = 10.1,2.0 Hz, 1H), 4.23 (td, J = 7.9, 4.3 Hz, 1H), 4.15 (t, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.69-3.62 (m, 2H), 3.23-3.19 (m, 2H), 3.12- 3.07 (m, 2H), 2.99 (s, 1H), 2.72 (s, 3H), 2.70 (s, 6H),; 568.4 [M + H]⁺ 1.28 512

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]hept- ane-5-yl)piperidine-1-yl)- 4-methoxy-5-((6- ((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.80 (s, 1H), 8.52 (s, 1H), 8.35 (s, 1H), 7.93 (d, J = 1.7 Hz, 1H), 7.86- 7.79 (m, 3H), 7.56 (dd, J = 8.5, 1.8 Hz, 1H), 7.45 (qd, J = 7.4, 3.6 Hz, 2H), 6.70 (d, J = 3.7 Hz, 2H), 6.54- 6.34 (m, 2H), 5.83 (dd, J = 8.7, 4.7 Hz, 1H), 5.77 (dd, J = 9.6, 2.0 Hz, 1H), 4.61 (s, 1H), 4.39 (s, 1H), 4.22 (tt, J = 7.9, 4.6 Hz, 2H), 4.11 (q, J = 7.9 Hz, 1H), 3.83 (d, J = 4.7 Hz, 3H), 3.69-3.62 (m, 3H), 3.12 (d, J = 8.5 Hz, 3H), 2.89-2.68 (m, 4H), 2.60- 2.38 (m, 4H), 2.07 (dt, J = 33.4, 13.3 Hz, 3H),; 648.6 [M + H]⁺ 1.24 513

N-(2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.33 (s, 1H), 8.53 (s, 1H), 8.14(s, 1H), 7.90 (td, J = 7.5, 6.8, 3.3 Hz, 4H), 7.61-7.44 (m, 4H), 6.59 (s, 1H), 6.49 (dd, J = 17.1, 10.2 Hz, 1H), 6.30 (s, 1H), 6.20 (dd, J = 17.1,2.1 Hz, 1H), 5.70 (dq, J = 11.1, 5.1,3.6 Hz, 2H), 4.18 (td, J = 7.8, 3.7 Hz, 1H), 3.90-3.79 (m, 4H), 3.32 (s, 6H), 2.83 (dtd, J = 12.1,8.1, 3.8 Hz, 2H), 2.65 (d, J = 19.7 Hz, 3H), 2.39-2.31 (m, 2H), 2.25 (s, 1H), 1.97 (s, 1H),; 580.4 [M + H]⁺ 1.19 514

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5- ((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.54 (s, 1H), 9.06 (s, 1H), 8.86 (s, 1H), 8.26 (s, 1H), 8.20 (s, 1H), 7.94-7.88 (m, 3H), 7.56 (dd, J = 8.5, 1.7 Hz, 1H), 7.50 (tt, J = 8.1, 3.7 Hz, 2H), 6.84 (s, 1H), 6.66 (dd, J = 17.1, 10.2 Hz, 1H), 6.38 (s, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 5.79-5.74 (m, 1H), 5.70 (dd, J = 8.6, 5.3 Hz, 1H), 4.23 (d, J = 3.9 Hz, 1H), 3.92 (t, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.58 (d, J = 11.6 Hz, 2H), 3.22 (d, J = 11.8 Hz, 6H), 3.04 (t, J = 12.5 Hz, 2H), 2.91- 2.82 (m, 1H), 2.36 (dt, J = 8.8, 5.1 Hz, 1H), 1.28 (t, J = 7.2 Hz, 3H),; 580.4 [M + H]⁺ 1.25 515

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 9.01 (s, 1H), 8.76 (s, 1H), 8.16 (d, J = 16.7 Hz, 2H), 7.95-7.86 (m, 4H), 7.56 (dd, J = 8.4, 1.8 Hz, 1H), 7.50 (qd, J = 7.6, 6.9, 3.7 Hz, 2H), 6.83 (s, 1H), 6.63 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.23 (dd, J = 17.0, 1.9 Hz, 1H), 5.77- 5.62 (m, 2H), 4.21 (dd, J = 7.7, 3.9 Hz, 1H), 3.91 (q, J = 8.1 Hz, 1H), 3.81 (s, 3H), 3.51 (s, 3H), 3.31 (s, 2H), 3.11 (d, J = 11.6 Hz, 4H), 2.94 (s, 1H), 2.91- 2.81 (m, 2H), 2.72 (t, J = 11.8 Hz, 3H), 2.41-2.32 (m, 2H), 1.94 (s, 2H), 1.79 (s, 2H), 1.20 (t, J = 7.2 Hz, 3H),; 663.5 [M + H]⁺ 1.2 516

N-(5-((6-((R)-3- (2,3-dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl)(methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.32 (s, 1H), 9.96 (s, 1H), 8.92 (s, 1H), 8.36 (s, 1H), 7.60 (d, J = 8.9 Hz, 1H), 7.37 (d, J = 9.4 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.96 (s, 1H), 6.82 (s, 1H), 6.77 (s, 1H), 6.40 (d, J = 16.5 Hz, 1H), 5.99 (s, 1H), 5.69 (d, J = 11.9 Hz, 1H), 4.12 (m, 2H), 3.85 (s, 3H), 3.69-3.61 (m, 1H), 3.08 (d, J = 1A Hz, 1H), 2.95 (d, J = 3.3 Hz, 2H), 2.73 (S, 3H), 2.43 (s, 6H), 2.24 (d, J = 12.4 Hz, 2H),; 586.3 [M + H]⁺ 1.37 517

N-(5-((6-((R)-3- (2,3-dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.93 (s, 1H), 8.51 (s, 1H), 8.37 (s, 1H), 7.60 (d, J = 8.8 Hz, 1H), 7.37 (d, J = 9.2 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.96 (s, 1H), 6.78 (d, J = 4.6 Hz, 2H), 6.37 (d, J = 17.0 Hz, 1H), 6.28 (m, 1H), 5.96 (m, 1H), 5.76 (d, J = 11.3 Hz, 1H), 4.11 (m, 2H), 3.87 (m, 7H), 2.96 (m, 1H), 2.89 (m,4H), 2.24 (m, 1H),; 571.3 [M + H]⁺ 1.64 518

N-(2-(4- cyclopropylpiper- azine-1-yl)-5-((6-((R)- 3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.60 (s, 1H), 8.36 (s, 1H), 7.60 (d, J = 7.7 Hz, 1H), 7.37 (d, J = 9.3 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94 (s, 1H), 6.78 (d, J = 13.6 Hz, 2H), 6.37 (d, J = 18.3 Hz, 1H), 6.30 (m, 1H), 5.96 (m, 1H), 5.75 (d, J = 9.8 Hz, 1H), 4.11 (m, 2H), 3.82 (s, 3H), 2.90 (m, 8H), 2.23 (m, 2H), 1.73 (m, 1H), 0.52 (d, J = 6.4 Hz, 2H), 0.47 (t, J = 3.8 Hz, 2H),; 610.3 [M + H]⁺ 1.36 519

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.94 (s, 1H), 8.44 (s, 1H), 8.37 (s, 1H), 7.60 (d, J = 8.9 Hz, 1H), 7.36 (d, J = 9.3 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.98 (s, 1H), 6.75 (d, d = 17.0 Hz, 2H), 6.38 (d, J = 16.0 Hz, 1H), 6.28 (m, 1H), 5.96 (m, 1H), 5.76 (d, J = 10.0 Hz, 1H), 4.09 (m, 2H), 3.86 (s, 3H), 3.80 (s, 2H), 3.64 (m, 2H), 2.96 (m, 1H), 2.87 (m, 3H), 2.61 (s, 3H), 2.21 (m, 1H), 2.02 (s, 1H),; 612.3 [M + Hf 1.54 520

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.49 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.63-7.56 (m, 1H), 7.37 (dd, J = 7.9, 1.5 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.96 (s, 1H), 6.82 (s, 1H), 6.76 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.72 (t, J = 6.6 Hz, 2H), 4.67 (t, J = 6.2 Hz, 2H), 4.16-4.03 (m, 2H), 3.85 (s, 3H), 3.61 (p, J = 6.5 Hz, 1H), 3.01  2.89 (m, 5H), 2.64- 2.45 (m, 4H), 2.24 (dp, J = 12.1,4.1 Hz, 1H),; 626.33 [M + H]⁺ 1.34 521

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.60 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 7.8, 1.5 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.93 (s, 1H), 6.76 (s, 2H), 6.36 (d, J = 16.8 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.81-5.70 (m, 1H), 4.16-4.04 (m, 2H), 3.85 (s, 3H), 3.78 (t, J = 4.7 Hz, 4H), 3.07 (d, J = 11.4 Hz, 2H), 3.00-2.90 (m, 1H), 2.73 (q, J = 12.3 Hz, 3H), 2.65- 2.56 (m, 4H), 2.37-2.17 (m, 3H), 2.08 (d, J = 12.5 Hz, 2H),; 654.4 [M + H]⁺ 1.34 522

N-(2-((1S,4S)-2-oxa- 5-azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 8.68 (s, 1H), 8.35 (s, 1H), 7.95 (s, 1H), 7.60 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.90 (s, 1H), 6.69 (d, J = 13.7 Hz, 2H), 6.39 (d, J = 16.8 Hz, 1H), 6.28 (dd, J = 16.8, 10.0 Hz, 1H), 5.96 (dd, J = 8.8, 4.5 Hz, 1H), 5.75 (d, J = 10.2 Hz, 1H), 4.65 (s, 1H), 4.14-3.99 (m, 3H), 3.86 (s, 3H), 3.76 (d, J = 7.8 Hz, 1H), 3.43 (d, J = 10.1 Hz, 1H), 3.24 (d, J = 10.1 Hz, 1H), 2.94 (dtd, J = 12.4, 8.1, 4.2 Hz, 1H), 2.61 (s, 1H), 2.22 (tdd, J = 12.9, 8.7, 4.6 Hz, 1H), 2.09 (d, J = 9.8 Hz, 1H), 1.99 (d, J = 10.6 Hz, 1H),; 583.3 [M + H] 1.48 523

N-(2-((1R,4R)-2-oxa- 5-azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)- 3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.64 (s, 1H), 8.35 (s, 1H), 7.95 (s, 1H), 7.59 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.88 (s, 1H), 6.73 (s, 2H), 6.39 (d, J = 16.8 Hz, 1H), 6.28 (dd, J = 17.0, 10.0 Hz, 1H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.76 (d, J = 9.9 Hz, 1H), 4.65 (s, 1H), 4.16-4.01 (m, 3H), 3.86 (s, 3H), 3.75 (d, J = 7.8 Hz, 1H), 3.46 (d, J = 10.1 Hz, 1H), 3.20 (d, J = 10.1 Hz, 1H), 3.00- 2.89 (m, 1H), 2.62 (s, 1H), 2.23 (dtd, J = 12.6, 8.2, 4.6 Hz, 1H), 2.09 (d, J = 10.0 Hz, 1H), 2.00 (d, J = 9.9 Hz, 1H),; 583.3 [M + H] 1.48 524

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((1S,4S)- 5-ethyl-2,5- diazabicyclo[2.2.1]hept- ane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.65 (s, 1H), 8.34 (s, 1H), 8.15(s, 1H), 7.59 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.95 (s, 1H), 6.81 (s, 1H), 6.66 (s, 1H), 6.39 (d, J = 16.5 Hz, 1H), 6.26-6.13 (m, 1H), 5.95 (dd, J = 8.8, 4.4 Hz, 1H), 5.75-5.66 (m, 1H), 4.09 (dd, J = 7.9, 4.2 Hz, 1H), 4.03 (q, J = 8.1 Hz, 1H), 3.88 (s, 3H), 3.13 (d, J = 9.6 Hz, 1H), 2.98-2.90 (m, 1H), 2.83 (d, J = 10.8 Hz, 1H), 2.35 (d, J = 25.1 Hz, 1H), 2.22 (dtd, J = 12.6, 8.2, 4.5 Hz, 1H), 1.51 (t, J = 7.6 Hz, 1H), 1.45 (d, J = 6.7 Hz, 2H), 1.37-1.21 (m, 7H),; 610.3 [M + H] 1.29 525

N-(5-((6-((R)- 3-(2,3- dichlorophenyl) isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((1R,4R)-5- ethyl-2,5- diazabicyclo[2. 2.1]heptane-2- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.62 (s, 1H), 8.34 (s, 1H), 8.09 (s, 1H), 7.59 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.92 (s, 1H), 6.73 (s, 1H), 6.38 (d, J = 15.9 Hz, 1H), 6.32-6.14 (m, 1H), 5.96 (dd, J = 8.7, 4.4 Hz, 1H), 5.78-5.66 (m, 2H), 4.14-4.04 (m, 2H), 3.88 (s, 3H), 3.09 (d, J = 10.5 Hz, 1H), 2.95 (ddt, J = 12.2, 8.0, 4.0 Hz, 2H), 2.80 (s, 2H), 2.32 (d, J = 21.0 Hz, 1H), 2.25-2.20 (m, 1H), 2.07 (s, 2H), 1.39-1.17 (m,6H),; 610.3 [M + H] 1.29 526

N-(5-((6-((R)- 3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((R)-3- (dimethylamino)- pyrolidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.35 (s, 1H), 8.58 (s, 1H), 8.33 (d, J = 1.0, Hz, 1H), 7.60 (d, J = 8.0 Hz, 1H), 7.36 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.86 (s, 1H), 6.74 (s, 1H), 6.68 (s, 1H), 6.41 (d, J = 16.3 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.72 (d, J = 11.7 Hz, 1H), 4.14-4.02 (m, 2H), 3.84 (s, 3H), 3.69-3.61 (m, 1H), 3.32 (dd, J = 7.3, 5.3 Hz, 1H), 3.12-3.05 (m, 2H), 2.95 (dq, J = 8.4, 4.0 Hz, 1H), 2.32 (d, J = 18.1 Hz, 1H), 2.23 (ddd, J = 12.4, 8.3, 4.4 Hz, 1H), 1.58-1.52 (m, 3H), 1.45 (d, J = 6.6 Hz, 2H), 1.26 (d, J = 4.8 Hz, 3H), 1.19 (t, J = 7.3 Hz, 1H),; 598.4 [M + H] 1.29 527

N-(5-((6-((R)- 3-(2,3- dichlorophenyl) isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.96 (s, 1H), 8.43 (dd, J = 7.8, 1.0 Hz, 1H), 7.59 (dd, J = 7.9, 1.6 Hz, 1H), 7.53-7.47 (m, 1H), 7.39 (dd, J = 8.0, 1.6 Hz, 1H), 7.24-7.14 (m, 2H), 6.99 (d, J = 9.0 Hz, 1H), 6.82-6.76 (m, 2H), 6.33 (d, J = 17.0 Hz, 1H), 6.11 (dd, J = 17.0, 10.2 Hz, 1H), 5.98 (dd, J = 8.7, 4.5 Hz, 1H), 5.73 (dd, J = 10.3, 1.2 Hz, 1H), 4.16(td, J = 8.0, 4.1 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.90 (d, J = 2.4 Hz, 3H), 2.97 (dtd, J = 12.4, 7.9, 4.1 Hz, 1H), 2.31 (d,J = 1.0 Hz, 3H), 2.29- 2.24 (m, 1H), 2.07-2.01 (m, 1H),; 566.3 [M + H] 1.46 528

N-(5-((6-((R)- 3-(3-chloro-2- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorph olino)piperidine- 1-yl)-4- methoxypheny)- acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.59 (s, 1H), 8.14 (d, J = 1.0 Hz, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.66 (dd, 16.9, 10.2 Hz, 1H), 6.34 (s, 1H), 6.21 (dd, J = 16.9, 2.0 Hz, 1H), 5,74-5.66 (m, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (s, 3H), 3.54 (dqd, J = 12.5, 6.1,3.1 Hz, 2H), 3.05 (d, J = 11.1 Hz, 2H), 2.88-2.77 (m, 3H), 2.65 (td, J = 10.9, 9.6, 6.1 Hz, 2H), 2.42 (s, 3H), 2.25 (dq, J = 11.0, 5.6, 3.7 Hz, 1H), 2.12-2.02 (m, 1H), 1.91-1.77 (m, 6H), 1.70 (qd, J = 11.3, 10.5, 3.2 Hz, 2H), 1.06 (d, J = 6.3 Hz, 6H),; 662.5 [M + H]⁺ 1.33 529

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-((S)- 2-methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.17-8.12 (m, 2H), 7.40 (dd, J = 7.9, 1.3 Hz, 1H) 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (td, J = 9.4, 3.4 Hz, 2H), 4.15 (td, J = 7.8, 3.7 Hz, 1H), 3.80 (s, 3H), 3.50 (t, J = 10.6 Hz, 2H), 3.42-3.22 (m, 4H), 3.11-3.00 (m, 3H), 2.83 (dtd, J = 11.9, 7.9, 3.7 Hz, 4H), 2.67 (t, J = 11.4 Hz, 2H), 2.36-2.18 (m, 2H), 2.08 (dtd, J = 12.6, 8.1,5.0 Hz, 2H), 1.91 (s, 3H), 1.87 (s, 2H), 1.71 (d, J = 12.4 Hz, 3H), 1.07 (d, J = 6.2 Hz, 3H),; 648.6 [M + H]⁺ 1.30 530

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-((R)- 2-methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.14 (d, J = 1.0 Hz, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (td, J = 9.0, 3.4 Hz, 2H), 4.14 (td, J = 7.8, 3.8 Hz, 1H), 3.80 (s, 3H), 3.53- 3.45 (m, 2H), 3.33 (s, 4H), 3.12-3.00 (m, 3H), 2.87-2.71 (m, 4H), 2.66 (td, J = 10.5, 9.4, 6.1 Hz, 2H), 2.42 (s, 3H), 2.34-2.16 (m, 2H), 2.14-2.02 (m, 1H), 1.91 (s, 2H), 1.86 (d, J = 12.6 Hz, 3H), 1.79-1.63 (m, 3H), 1.07 (d, J = 6.3 Hz, 4H),; 648.5 [M + H]⁺ 1.29 531

N-(2-(4-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]hept- ane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-2- methylphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.59 (s, 1H), 8.14 (d, J = 1.0 Hz, 1H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.64 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.70 (td, J = 8.8, 7.7, 3.4 Hz, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.87 (dd, J = 12.8, 7.8 Hz, 2H), 3.80 (s, 3H), 3.04- 2.90 (m, 4H), 2.83 (dtd, J = 11.9, 8.0, 3.8 Hz, 2H), 2.70 (tdd, J = 10.9, 7.8, 2.3 Hz, 2H), 2.42 (s, 3H), 2.34 (d, J = 9.7 Hz, 1H), 2.14-2.01 (m, 2H), 1.90 (s, 5H), 1.76-1.52 (m, 5H),; 646.5 [M + H]⁺ 1.27 532

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]hept- ane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-2- methylphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (S,1H), 8.59 (s, TH), 8.14 (d, J = 1.0 Hz, 1H), 7.40 (dd, J = 7.9, 1.4 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.83 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.34(s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.70 (td, J = 8.9, 7.8, 3.4 Hz, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.87 (dd, J = 12.9, 7.8 Hz, 3H), 3.80 (s, 3H), 3.04- 2.93 (m, 4H), 2.82 (dq, J = 8.0, 4.1 Hz, 1H), 2.71 (dt, J = 11.4, 9.1 Hz, 3H), 2.42 (s, 4H), 2.34 (d, J = 9.7 Hz, 1H), 2.10-2.05 (m, 1H), 1.90 (s, 6H), 1.73- 1.55 (m, 5H),; 646.5 [M + H]⁺ 1.26 533

N-(2-(4-(4- cyclopropylpiperazine- 1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- fluorophenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.32 (d, J = 8.4 Hz, 1H), 8.19 (s, 1H), 7.14-7.01 (m, 3H), 6.88-6.80 (m, 1H), 6.57 (dd, J = 10.1, 17.0 Hz, 1H), 6.46-6.33 (m, 2H), 5.84 (d, J = 10.3 Hz, 1H), 5.61-5.52 (m, 1H), 4.2O- 4.14 (m, 1H), 4.00-3.94 (m, 1H), 3.23-3.16 (m, 2H), 3.08-2.94 (m, 4H), 2.91-2.73 (m, 8H), 2.38-2.31 (m, 1H), 2.18-2.09 (m, 2H), 1.92- 1.78 (m, 3H), 0.59-0.53 (m, 2H), 0.53-0.44 (m, 2H),; 649.3 [M + H]⁺ 1.34 534

N-(2-(4-(4- cyclopropylpiperazine- 1-yl)piperidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methylphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.13 (S,1H), 8.06 (s, 1H), 7.17 (s, 1H), 7.09-7.00 (m, 2H), 6.84 (tt, J = 2.5, 9.1 Hz, 1H), 6.56 (dd, J = 10.3, 17.0 Hz, 1H), 6.43-6.32 (m, 1H), 6.21 (s, 1H), 5.82 (d, J = 10.3 Hz, 1H), 5.55 (dd, J = 4.8, 8.7 Hz, 1H), 4.16-4.09 (m, 1H), 3.94 (q, J = 7.9 Hz, 1H), 3.21-3.14 (m, 2H), 3.10- 2.95 (m, 4H), 2.93-2.76 (m, 8H), 2.37-2.28 (m, 1H), 2.23 (s, 3H), 2.20-2.11 (m, 2H), 1.93-1.79 (m, 3H), 0.60-0.53 (m, 2H), 0.52-0.45 (m, 2H),; 645.3 [M + H]⁺ 1.24 535

N-(4-methoxy-2-(4- ((S)-2- methylmorpholino)pip- eridine-1-yl)-5-((6- ((R)-3-(naphthalene- 1-yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 650.5[M + H]⁺ 1.28 536

N-(4-methoxy-2-(4- ((R)-2- methylmorpholino)pip- eridine-1-yl)-5-((6- ((R)-3-(naphthalene- 1-yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.44 (s, 1H), 8.37 (s, 1H), 8.15 (d, J = 8.3 Hz, 1H), 7.88 (dd, J = 8.0, 1.5 Hz, 1H), 7.77 (dd, J = 7.7, 5.2 Hz, 2H), 7.60-7.41 (m, 3H), 6.93 (s, 1H), 6.77 (d, J = 12.2 Hz, 2H), 6.45-6.32 (m, 2H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.24-4.09 (m, 2H), 3.96-3.90 (m, 1H), 3.85 (s, 3H), 3.76-3.60 (m, 2H), 3.12-3.02 (m, 2H), 3.01-2.93 (m, 1H), 2.93- 2.82 (m, 2H), 2.80-2.66 (m, 2H), 2.45-2.37 (m, 1H), 2.34-2.26 (m, 2H), 2.11-2.04 (m, 2H), 1.69-1.63 (m, 3H), 1.26 (s, 3H),; 650.5 [M + H]⁺ 1.27 537

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ; 568.35 [M + H]⁺ 1.29 538

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl)(methyl)amino)-4- methoxyphenyl)acrylamide ; 570.38 [M + H]⁺ 1.31 539

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((3aR,6aR)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ; 677.47 [M + H]⁺ 1.21 540

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((3aS,6aS)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ; 677.47 [M + H]⁺ 1.21 541

N-(5-((6-((R)-3-(4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((3aR,6aR)-1- methylhexahydropyrrolo[3,4-b]pyrrole- 5(1H)-yl)piperidine-1- yl)phenyl)acrylamide ; 643.3 [M + H]⁺ 1.18 542

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(3-methyl-3,6- diazabicyclo[3.1.1]hept- ane-6- yl)phenyl)acrylamide ; 564.4 [M + H]⁺ 1.16 543

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.08 (s, 1H), 9.20 (s, 1H), 8.32 (s, 1H), 7.89 (s, 1H), 7.43 (ddt, J = 10.5, 4.7, 2.7 Hz, 2H), 7.26-7.21 (m, 1H), 6.92 (s, 1H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.11 (s, 1H), 5.78 (d, J = 1.9 Hz, 1H), 5.53 (dd, J = 8.4, 5.3 Hz, 1H), 4.30 (d, J = 4.5 Hz, 1H), 4.15 (dt, J = 7.7, 4.0 Hz, 2H), 4.05 (d, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.46 (d, J = 11.7 Hz, 2H), 3.23 (d, J = 11.8 Hz, 3H), 2.93-2.87 (m, 1H), 2.78 (s, 2H), 2.69 (d, J = 10.7 Hz, 2H), 2.32 (d, J = 7.7 Hz, 1H), 2.24 (d, J = 11.4 Hz, 2H), 2.13-2.03 (m, 2H), 1.17 (d, J = 6.2 Hz, 6H),; 650.3 [M + H]⁺ 1.28 544

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ; 663.5 [M + H]⁺ 1.20 545

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ; 649.5 [M + H]⁺ 1.18 546

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- [1,4′-bipiperidine]-1-yl)-4- methoxyphenyl)acrylamide ; 663.5 [M + H]⁺ 1.09 547

N-(5-((6-((R)-3-(3,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- propylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.08 (s, 1H), 7.24 (dd, J = 11.8, 7.7 Hz, 1H), 7.13 (dd, J = 9.2, 4.5 Hz, 2H), 6.78 (s, 1H), 6.53 (dd, J = 16.9, 10.3 Hz, 1H), 6.36 (s, 1H), 6.26-6.20 (m, 1H), 5.78-5.65 (m, 1H), 5.41 (dd, J = 8.4, 4.8 Hz, 1H), 4.05 (td, J = 7.8, 4.3 Hz, 1H), 3.87 (d, J = 7.9 Hz, 1H), 3.75 (s, 3H), 3.22-3.19 (m, 1H), 3.00 (dd, J = 7.1,4.0 Hz, 5H), 2.81-2.74 (m, 2H), 2.73-2.62 (m, 4H), 2.26- 2.16 (m, 1H), 2.05 (s, 1H), 1.95 (d, J = 10.7 Hz, 2H), 1.79 (dd, J = 16.3, 7.3 Hz, 2H), 1.66-1.58 (m, 2H), 0.88 (t, J = 7.4 Hz, 3H); 663.5 [M + H]⁺ 1.08 548

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(4- chloro-2- fluorophenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.92 (s, 1H), 9.26 (d, J = 33.7 Hz, 1H), 8.30 (s, 1H), 7.89 (d, J = 12.7 Hz, 1H), 7.49 (dd, J = 10.3, 2.1 Hz, 1H), 7.40 (t, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.92 (d, J = 7.7 Hz, 1H), 6.59 (dd, J = 17.3, 10.3 Hz, 1H), 6.29-6.13 (m, 2H), 5.75 (d, J = 4.5 Hz, 1H), 5.66 (dd, J = 8.6, 5.5 Hz, 1H), 4.71-4.55 (m, 2H), 4.33-4.25 (m, 1H), 4.20 (d, J = 10.3 Hz, 1H), 4.04 (d, J = 7.8 Hz, 1H), 3.82 (d, J = 1.8 Hz, 3H), 3.70 (d, J = 9.9 Hz, 1H), 3.52-3.40 (m, 2H), 3.30-3.13 (m, 3H), 2.95-2.67 (m, 4H), 2.29 (dd, J = 18.8, 10.0 Hz, 2H), 2.18-2.02 (m, 4H),; 650.3 [M + H]⁺ 1.3 549

N-(4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- propylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.10 (s, 1H), 8.07 (s, 1H), 7.15 (t, J = 8.2 Hz, 1H), 6.85 (s, 1H), 6.80 (s, 1H), 6.75-6.69 (m, 1H), 6.54 (dd, J = 16.9, 10.3 Hz, 1H), 6.30-6.21 (m, 1H), 6.14(S, 1H), 5.70 (d, J = 10.5 Hz, 1H), 5.36 (dd, J = 8.3, 5.2 Hz, 1H), 4.14 (td, J = 7.6, 4.4 Hz, 1H), 3.93 (dd, J = 15.7, 7.8 Hz, 1H), 3.73 (s, 3H), 3.23-3.19 (m, 3H), 3.05- 3.00 (m, 3H), 2.78 (ddd, J = 23.2, 18.3, 11.7 Hz, 7H), 2.31-2.19 (m, 1H), 2.06 (s, 3H), 2.01 (d, J = 10.6 Hz, 1H), 1.85 (d, J = 10.1 Hz, 1H), 1.77-1.69 (m, 2H), 1.65 (dd, J = 15.7, 7.8 Hz, 2H), 0.92 (t, J = 7.3 Hz, 3H),; 657.5 [M + H]⁺ 1.10 550

N-(2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.59 (s, 1H), 8.16 (s, 1H), 7.95-7.86 (m, 4H), 7.49 (qd, J = 7.4, 7.0, 3.4 Hz, 2H), 6.83 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.38 (s, 1H), 6.25-6.02 (m, 2H), 5.76-5.65 (m, 2H), 4.19 (td, J = 7.9, 3.8 Hz, 1H), 3.88 (q, J = 7.9 Hz, 1H), 3.80 (s, 3H), 3.11-3.02 (m, 2H), 2.94-2.79 (m, 2H), 2.68 (q, J = 11.7, 9.6 Hz, 5H), 2.34 (dtd, J = 13.7, 9.3, 8.7, 5.8 Hz, 2H), 1.86 (d, J = 12.1 Hz, 2H), 1.78-1.63 (m, 2H), 1.17 (d, J = 6.6 Hz, 6H), 1.02 (d, J = 6.5 Hz, 6H),; 677.5 [M + H] 1.18 551

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl)- (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.36-8.30 (m, 1H), 7.49 _ 7.43 (m, 1H), 7.24-7.17 (m, 1H), 7.05 (td, J = 8.5, 1.6 Hz, 1H), 6.76 (d, J = 13.8 Hz, 2H), 6.45-6.24 (m, 2H), 6.21-6.09 (m, 1H), 5.95 (dd, J = 8.7, 4.4 Hz, 1H), 5.70 (dt, J = 8.3, 3.1 Hz, 1H), 4.16-4.07 (m, 2H), 3.85 (s, 3H), 3.70 (d, J = 7.5 Hz, 1H), 3.16 (d, J = 5.3 Hz, 2H), 2.92-2.88 (m, 2H), 2.70 (s, 3H), 2.63 (s, 6H), 2.24 (dtd, J = 12.4, 8.1,5.0 Hz, 2H),; 570.3 [M + H]⁺ 1.26 552

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.53 (s, 1H), 8.23 (d, J = 9.4 Hz, 1H), 7.46 (d, J = 7.8 Hz, 1H), 7.35 (d, J = 7.6 Hz, 1H), 7.21 (td, J = 8.0, 5.3 Hz, 1H), 7.09-6.93 (m, 2H), 6.73 (s, 1H), 6.42-6.24 (m, 2H), 5.95 (dd, J = 8.7, 4.5 Hz, 1H), 5.78-5.70 (m, 1H), 4.17-3.98 (m, 3H), 3.85 (s, 3H), 3.74 (s, 3H), 3.15 (s, 3H), 2.96 (dt, J = 20.7, 3.7 Hz, 3H), 2.78 (s, 4H),; 568.3 [M + H] 1.24 553

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2-(4- (dimethylamino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.40 (s, 1H), 8.35 (d, J = 1.0 Hz, 1H), 7.46 (d, J = 7.8 Hz, 1H), 7.21 (td, J = 8.0, 5.3 Hz, 1H), 7.13(s, 1H), 7.05 (td, J = 8.5, 1.5 Hz, 1H), 6.73 (s, 1H), 6.36 (d, J = 2.9 Hz, 1H), 6.33- 6.11 (m, 1H), 5.95 (dd, J = 8.8, 4.4 Hz, 1H), 5.73 (ddd, J = 20.7, 9.5, 2.5 Hz, 1H), 4.16-4.03 (m, 3H), 3.85 (s, 3H), 3.13 (d, J = 11.7 Hz, 2H), 2.94 (dtd, J = 12.3, 8.0, 4.3 Hz, 1H), 2.87-2.70 (m, 3H), 2.63 (s, 6H), 2.29-2.14 (m, 3H), 2.00-1.84 (m, 2H),; 596.4 [M + H]⁺ 1.24 554

N-(4-methoxy-2-(4- (4-methylpiperazine- 1-yl)piperidine-1-yl)- 5-((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.25 (s, 1H), 8.05 (s, 1H), 7.95- 7.88 (m, 4H), 7.56-7.48 (m, 3H), 6.85 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.1, 1.9 Hz, 2H), 5.79-5.64 (m, 2H), 4.28 (dd, J = 7.9, 4.0 Hz, 1H), 4.01 (d, J = 8.2 Hz, 1H), 3.79 (s, 3H), 3.61 (s, 2H), 3.17 (d, J = 12.0 Hz, 4H), 3.01-2.91 (m, 1H), 2.87 (s, 3H), 2.75 (t, J = 11.6 Hz, 4H), 2.45- 2.31 (m, 1H), 2.05 (s, 4H), 1.90 (d, J = 10.8 Hz, 4H),; 649.5 [M + H]⁺ 1.13 555

N-(4-methoxy-2-(4- morpholinopiperidine- 1-yl)-5-((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.24 (s, 1H), 8.04 (s, 1H), 7.97- 7.88 (m, 4H), 7.59-7.48 (m, 3H), 6.84 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 2H), 5.80-5.64 (m, 2H), 4.54 (d, J = 13.4 Hz, 1H), 4.34-4.21 (m, 1H), 4.03 (dt, J = 16.1, 10.8 Hz, 2H), 3.79 (s, 3H), 3.57 (d, J = 35.8 Hz, 2H), 3.47-3.34 (m, 2H), 3.18 (d, J = 11.7 Hz, 2H), 2.93 (d, J = 9.3 Hz, 2H), 2.75 (t, J = 11.7 Hz, 2H), 2.39 (dt, J = 13.0, 3.8 Hz, 1H), 2.07 (s, 5H), 2.02-1.87 (m, 2H),; 636.5 [M + H]⁺ 1.25 556

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.08 (s, 1H), 8.24 (d, J = 3.6 Hz, 1H), 8.03 (s, 1H), 7.96-7.87 (m, 4H), 7.52 (qd, J = 7.5, 3.7 Hz, 3H), 6.85 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.1, 1.9Hz,2H), 5.71 (ddd, J = 29.2, 9.4, 3.8 Hz, 2H), 4.29 (s, 1H), 4.02 (td, J = 16.2, 14.9, 9.8 Hz, 4H), 3.79 (s, 3H), 3.72 (t, J = 12.3 Hz, 3H), 3.49 (d, J = 12.1 Hz, 2H), 3.33 (s, 1H), 3.18 (d, J = 11.3 Hz, 4H), 2.93 (s, 1H), 2.75 (t, J = 11.8 Hz, 4H), 2.39 (dq, J = 13.1, 7.5 Hz, 1H), 2.22-2.09 (m, 2H), 2.02- 1.84 (m, 2H),; 677.5 [M + H]+ 1.23 557

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.09 (d, J = 16.6 Hz, 1H), 8.93 (s, 1H), 8.21 (s, 1H), 8.08 (s, 1H), 7.92 (dt, J = 8.6, 4.3 Hz, 4H), 7.59-7.46 (m, 3H), 6.83 (s, 1H), 6.54 (dt, J = 17.0, 10.2 Hz, 1H), 6.33 (s, 1H), 6.23 (dd, J = 16.4, 3.3 Hz, 1H), 5.72 (ddd, J = 19.7,9.5, 4.5 Hz, 2H), 4.72 (s, 1H), 4.66 (d, J = 7.0 Hz, 1H), 4.23 (dd, J = 8.6, 4.6 Hz, 2H), 3.93 (t, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.75 (t, J = 10.1 Hz, 2H), 3.57-3.43 (m, 2H), 3.15 (t, J = 9.9 Hz, 2H), 2.92-2.73 (m, 3H), 2.36 (ddd, J = 12.8, 8.5, 4.1 Hz, 2H), 2.18-2.02 (m, 3H), 1.83 (s, 2H),; 648.5 [M + H]⁺ 1.24 558

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.94 (s, 1H), 9.33 (s, 1H), 8.86 (s, 1H), 8.18(s, 1H), 7.62 (s, 1H), 7.38- 7.35 (m, 2H), 6.65 (s, 1H), 6.51 (dd, J = 17.0, 10.2 Hz, 1H), 6.31- 6.16 (m, 2H), 5.78 (dd, J = 8.8, 4.9 Hz, 1H), 5.73 (dd, J = 10.2, 2.0 Hz, 1H), 4.17 (td, 7 = 7.9, 3.8 Hz, 1H), 3.92-3.87 (m, 1H), 3.83 (s, 3H), 3.46-3.39 (m, 2H), 3.37-3.29 (m, 1H), 3.22 (q, J = 8.3 Hz, 1H), 2.92 (dt, J = 8.4, 4.0 Hz, 1H), 2.84 (d, J = 5.6 Hz, 6H), 2.40-2.29 (m, 2H), 2.11 (ddd, J = 12.3, 8.3, 3.5 Hz, 2H),; 582.4 [M + H]⁺ 1.22 559

N-(5-((6-((R)-3-(2- chloro-3-fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.69 (s, 1H), 9.07 (s, 1H), 8.81 (s, 1H), 8.28 (s, 1H), 8.19 (s, 1H), 7.41- 7.37 (m, 2H), 6.85 (s, 1H), 6.66 (dd, J = 17.0, 10.1 Hz, 1H), 6.43 (s, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.78 (ddd, 7 = 16.5, 9.4, 3.4 Hz, 2H), 4.17 (td, J = 7.9, 3.8 Hz, 1H), 3.91 (t, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.58 (d, J = 11.7 Hz, 2H), 3.29-3.16 (m, 6H), 3.05 (t, J = 12.2 Hz, 2H), 2.90 (qd, J = 8.3, 4.0 Hz, 1H), 2.12 (dtd, J = 12.8, 8.2, 5.0 Hz, 1H), 1.28 (t, J = 7.3 Hz, 3H),; 582.4 [M + H]⁺ 1.26 560

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.10 (d, J = 30.3 Hz, 2H), 8.22 (s, 1H), 8.09 (s, 1H), 7.45-7.31 (m, 3H), 6.86 (s, 1H), 6.63 (dd, J = 16.9, 10.2 Hz, 1H), 6.35-6.18 (m, 2H), 5.85-5.68 (m, 2H), 4.20 (td, J = 7.9, 4.0 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.74-3.27 (m, 7H), 3.17 (d, J = 11.9 Hz, 4H), 2.95 (qt, J = 7.6, 3.8 Hz, 1H), 2.87 (s, 3H), 2.76 (t, J = 11.7 Hz, 2H), 2.15 (dp, J = 11.6, 3.9, 3.0 Hz, 1H), 2.07 (d, J = 11.5 Hz, 2H), 1.89 (d,J = 15.3 Hz, 2H),; 651.5 [M + H]⁺ 1.20 561

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(tetrahydro-2H- pyran-4-yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.54 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.62-7.57 (m, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.96 (s, 1H), 6.82 (s, 1H), 6.76 (s, 1H), 6.40-6.31 (m, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (dd, J = 9.9,1.6 Hz, 1H), 4.14-4.03 (m, 4H), 3.83 (s, 3H), 3.47-3.37 (m, 2H), 2.93 (s, 4H), 2.76 (s, 4H), 2.23 (dtd, J = 12.5, 8.2, 4.5 Hz, 1H), 1.84 (d, J = 12.6 Hz, 2H), 1.64 (ddd, J = 23.0, 13.6, 7.7 Hz, 4H),; 654.4 [M + H]⁺ 1.35 562

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.48 (s, 1H), 8.35 (dd, J = 8.9, 1.0 Hz, 1H), 7.57 (d, J = 8.9 Hz, 1H), 7.37 (ddd, J = 8.0, 4.1, 1.5 Hz, 1H), 7.20 (dt, J = 7.9, 4.0 Hz, 1H), 7.03- 6.94 (m, 2H), 6.81-6.75 (m, 1H), 6.55 (d, J = 1.0 Hz, 1H), 6.39-6.22 (m, 1H), 5.95 (td, J = 8.8, 4.5 Hz, 1H), 5.75 (dd, J = 10.0, 1.6 Hz, 1H), 5.55 (s, 1H), 4.10 (q, J = 7.9 Hz, 2H), 3.96 (q, J = 8.1 Hz, 1H), 3.85 (d, J = 3.9 Hz, 4H), 3.30 (s, 3H), 3.26 (d, J = 7.2 Hz, 2H), 3.23 (s, 3H), 3.20-3.18 (m, 2H), 3.16 (s, 2H), 3.04 (t, J = 6.7 Hz, 4H), 1.99- 1.95 (m, 4H),; 667.4 [M + H] 1.19 563

N-(2-(4- cyclopentylpiperazine- 1-yl)-5-((6-((R)-3- (2,3-dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.59 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (dd, J = 7.9, 1.6 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.95 (s, 1H), 6.83 (s, 1H), 6.76 (s, 1H), 6.40- 6.21 (m, 2H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 4.15-4.04 (m, 2H), 3.82 (s, 3H), 3.00-2.91 (m, 4H), 2.70 (s, 2H), 2.59 (p, J = 7.8 Hz, 2H), 2.23 (dtd, J = 12.6, 8.2, 4.4 Hz, 1H), 1.93 (s, 2H), 1.79-1.70 (m, 2H), 1.60 (d, J = 6.9 Hz, 4H), 1.47 (q, J = 11.4, 9.8 Hz, 2H),; 638.4[M + H] 1.39 564

N-(2-((R)-4- cyclopropyl-3- methylpiperazine-1- yl)-5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.60 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.63-7.57 (m, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94 (s, 1H), 6.78 (d, J = 9.8 Hz, 2H), 6.41-6.22 (m, 2H), 5.97 (dd, J = 8.7, 4.4 Hz, 1H), 5.75 (dd, J = 9.9, 1.7 Hz, 1H), 4.15- 4.04 (m, 2H), 3.82 (s, 3H), 3.13 (d, J = 11.8 Hz, 1H), 2.96 (ddt, J = 12.1, 7.9, 4.1 Hz, 1H), 2.90 (d, J = 9.1 Hz, 1H), 2.83 (d,J = 10.3 Hz, 1H), 2.63- 2.55 (m, 2H), 2.23 (dp, J = 12.1, 4.1 Hz, 1H), 1.56 (s, 3H), 1.26 (d, J = 6.2 Hz, 3H), 0.66 (ddt, J = 28.0, 10.2, 5.5 Hz, 2H), 0.49 (dq, J = 10.9, 5.9 Hz, 1H), 0.37 (dt, J = 10.5, 5.4 Hz, 1H),; 624.4[M + H] 1.38 565

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.43 (s, 1H), 8.36 (s, 1H), 7.60 (d, J = 7.6 Hz, 1H), 7.37 (d, J = 7.8 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 2H), 6.36 (d, J = 16.8 Hz, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.96 (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (d, J = 10.1 Hz, 1H), 4.17-4.04 (m, 2H), 3.85 (s, 3H), 3.40-3.33 (m, 2H), 3.29- 3.16 (m, 3H), 3.07 (d, J = 11.6 Hz, 2H), 3.00-2.88 (m, 3H), 2.80- 2.70 (m, 4H), 2.46-2.38 (m, 4H), 2.26-2.16(m, 2H), 2.09 (d, J = 12.4 Hz, 2H),; 667.4 [M + H]⁺ 1.28 566

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(2- (dimethylamino)ethyl)piperazine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.36 (d, J = 5.3 Hz, 1H), 7.61-7.57 (m, 1H), 7.36 (d, J = 3.3 Hz, 1H), 7.21-7.19 (m, 1H), 7.00 (s, 1H), 6.80 (d, J = 5.0 Hz, 1H), 6.74 (s, 1H), 6.55 (s, 1H), 6.47- 6.39 (m, 1H), 6.35-6.26 (m, 1H), 5.99-5.92 (m, 1H), 5.78-5.71 (m, 1H), 4.09 (q, J = 8.0 Hz, 2H), 3.85 (s, 3H), 3.36 (t, J = 6.1 Hz, 3H), 3.21- 3.16 (m, 5H), 3.13 (s, 2H), 3.04 (t, J = 6.4 Hz, 4H), 2.75 (s, 6H),; 641.51 [M + H]⁺ 1.26 567

N-(2-(4- (cyclopropylmethyl)pip- erazine-1-yl)-5-((6- ((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 8.91 (s, 1H), 8.56 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.64-7.58 (m, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.95 (s, 1H), 6.84 (s, 1H), 6.76 (s, 1H), 6.41-6.34 (m, 1H), 6.32-6.22 (m, 1H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16-4.04 (m, 2H), 3.84 (s, 3H), 3.04-2.89 (m, 5H), 2.74 (s, 3H), 2.54(s, 1H), 2.38 (s, 1H), 2.32-2.16 (m, 2H), 1.56- 1.50 (m, 1H), 0.64-0.53 (m, 2H), 0.23-0.15 (m, 2H),; 624.39 [M + H]⁺ 1.38 568

N-(2-((S)-4- cyclopropyl-3- methylpiperazine-1- yl)-5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.60 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (dd, J = 7.1,1.1 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94(s, 1H), 6.79 (s, 1H), 6.77 (s, 1H), 6.41- 6.34(m, 1H), 6.27 (dd, J = 17.0, 9.9 Hz, 1H), 5.97 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (dd, J = 10.0, 1.6 Hz, 1H), 4.15-4.05 (m, 2H), 3.82 (s, 3H), 3.17-3.09 (m, 1H), 3.00- 2.92 (m, 1H), 2.90-2.87 (m, 1H), 2.82 (d, J = 11.1 Hz, 1H), 2.70 (s, 1H), 2.64-2.57 (m, 2H), 2.30- 2.19 (m, 1H), 1.56 (s, 2H), 1.26 (d, J = 6.2 Hz, 3H), 0.74-0.59 (m, 2H), 0.54-0.45 (m, 1H), 0.44-0.35 (m, 1H),; 624.4 [M + H]⁺ 1.38 569

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) G 8.87 (s, 1H), 8.40 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (dd, J = 7.6, 1.6 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94 (s, 1H), 6.77-6.72 (m, 2H), 6.40- 6.32 (m, 1H), 6.25 (dd, J = 16.9, 10.1 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16-4.05 (m, 2H), 3.85 (s, 3H), 3.46-3.38 (m, 1H), 3.35- 3.28 (m, 2H), 3.08 (d, J = 11.7 Hz, 2H), 3.00-2.85 (m, 5H), 2.74 (q, J = 12.4 Hz, 5H), 2.40 (s, 2H), 2.30- 2.18 (m, 2H), 2.09 (d, J = 12.1 Hz, 2H), 1.19 (t, J = 7.3 Hz, 3H),; 681.4 [M + H]⁺ 1.28 570

N-(2-(4- ethylpiperazine-1-yl)- 4-methoxy-5-((6-((R)- 3-(2,3,4- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.72 (s, 1H), 8.45 (s, 1H), 8.29 (s, 1H), 7.70 (s, 1H), 7.32-7.26 (m, 1H), 6.93 (tdd, J = 9.2, 6.8, 2.0 Hz, 1H), 6.84 (s, 1H), 6.64 (s, 1H), 6.40- 6.28 (m, 2H), 5.83 (dd, J = 8.8, 4.7 Hz, 1H), 5.75 (dd, J = 8.6, 2.9 Hz, 1H), 4.13 (td, J = 8.1, 4.2 Hz, 1H), 4.03 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.15-3.06 (m,4H), 3.07- 2.93 (m, 4H), 2.85 (dq, J = 8.7, 5.5, 4.6 Hz, 3H), 2.28 (dtd, J = 12.6, 8.1, 4.6 Hz, 1H), 1.28 (t, J = 7.3 Hz, 3H); 584.3[M + H]⁺ 1.25 571

N-(2-((2- (dimethylamino)ethyl)(methyl)amino)-4- methoxy-5-((6-((R)-3- (2,3,4- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.38 (s, 1H), 8.78 (s, 1H), 8.28 (d, J = 1.0 Hz, 1H), 7.79 (s, 1H), 7.29 (q, J = 6.1,5.2 Hz, 1H), 6.97-6.90 (m, 1H), 6.82-6.77 (m, 1H), 6.75 (s, 1H), 6.72-6.71 (m, 1H), 6.41 (dd, J = 16.9, 1.7 Hz, 1H), 5.85 (dd, J = 8.8, 4.6 Hz, 1H), 5.72 (dd, J = 10.3, 1.7 Hz, 1H), 4.15 (td, J = 7.0, 5.9, 3.1 Hz, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.16 (t, J = 5.9 Hz, 2H), 2.93 (t, J = 5.9 Hz, 2H), 2.84 (ddd, J = 10.1,7.1,3.2 Hz, 1H), 2.66 (s, 3H), 2.61 (s, 6H), 2.29 (dt, J = 12.5, 4.0 Hz, 1H);572.4[M + H]⁺ 1.30 572

N-(4-methoxy-2-(4- methylpiperazine-1- yl)-5-((6-((R)-3-(2,3,4- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.75 (s, 1H), 8.42 (s, 1H), 8.29 (s, 1H), 7.71 (s, 1H), 7.33-7.27 (m, 1H), 6.96-6.90 (m, 1H), 6.82 (s, 1H), 6.66 (s, 1H), 6.37 (d, J = 16.7 Hz, 1H), 6.28 (dd, J = 16.8, 9.9 Hz, 1H), 5.84 (dd, J = 8.3, 4.5 Hz, 1H), 5.76 (dd, J = 9.8, 1.7 Hz, 1H), 4.13 (td, J = 8.0, 4.1 Hz, 1H), 4.04(q, J = 8.1 Hz, 1H), 3.86 (s, 3H), 3.01 (q, J = 4.1 Hz, 4H), 2.84 (dq, J = 8.4, 4.2 Hz, 5H), 2.49 (s, 3H), 2.28 (dtd, J = 12.7, 8.2, 4.7 Hz, 1H); 570.4[M + H]⁺ 1.27 573

N-(2-(4- (dimethylamino)piperidine-1-yl)-4- methoxy-5-((6- ((R)-3-(2,3,4- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.75 (s, 1H), 8.46 (s, 1H), 8.30 (d, J = 1.0 Hz, 1H), 7.50 (s, 1H), 7.33-7.28 (m, 1H), 6.93 (tdd, J = 9.2, 6.9, 2.1 Hz, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.40-6.34 (m, 2H), 5.85 (dd, J = 8.8, 4.6 Hz, 1H), 5.75 (dd, J = 7.3, 4.2 Hz, 1H), 4.13 (td, J = 8.0, 4.2 Hz, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.12 (d, J = 11.8 Hz, 2H), 2.87-2.70 (m, 4H), 2.60 (s, 6H), 2.28 (dq, J = 8.7, 4.7, 4.0 Hz, 1H), 2.17-2.10 (m, 2H), 1.89 (qd, J = 10.8, 9.6, 5.9 Hz, 2H); 598.5[M + H]⁺ 1.28 574

N-(2-(4-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,4- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.14 (s, 1H), 9.31 (d, J = 35.5 Hz, 1H), 8.33 (s, 1H), 7.87 (d, J = 12.0 Hz, 1H), 7.37-7.20 (m, 2H), 6.94 (d, J = 10.8 Hz, 1H), 6.62 (ddd, J = 21.3, 17.0, 10.2 Hz, 1H), 6.28-6.15 (m, 2H), 5.78 (s, 1H), 5.70 (dd, J = 8.6, 5.6 Hz, 1H), 4.73-4.68 (m, 1H), 4.61 (d, J = 29.7 Hz, 1H), 4.36-4.29 (m, 1H), 4.21 (d, J = 10.3 Hz, 1H), 4.10-4.01 (m, 1H), 3.83 (d, J = 2.3 Hz, 3H), 3.70 (dd, J = 9.3, 5.0 Hz, 1H), 3.53-3.41 (m, 2H), 3.25 (d, J = 13.0 Hz, 3H), 3.19-3.10 (m, 1H), 2.90 (ddd, J = 26.1, 15.2, 7.3 Hz, 3H), 2.37-2.28 (m, 2H), 2.19 (d, J = 11.5 Hz, 1H), 2.14-2.03 (m, 3H),; 652.3[M + H]⁺ 1.28 575

N-(2-(4- ((1R,4R)-2-oxa- 5-azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,4- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.72 (s, 1H), 9.23 (d, J = 32.9 Hz, 1H), 8.29 (s, 1H), 7.92 (d, J = 12.2 Hz, 1H), 7.29 (dt, J = 20.3, 8.0 Hz, 2H), 6.90 (d, J = 7.4 Hz, 1H), 6.58 (dt, J = 16.2, 8.1 Hz, 1H), 6.28-6.19 (m, 2H), 5.78-5.65 (m, 2H), 4.68 (d, J = 22.6 Hz, 2H), 4.58 (s, 1H), 4.01 (d, J = 7.9 Hz, 2H), 3.82 (d, J = 2.0 Hz, 3H), 3.70 (d, J = 9.6 Hz, 1H), 3.45 (d, J = 8.0 Hz, 2H), 3.37- 3.13 (m, 4H), 2.94-2.68 (m, 4H), 2.31 (dt, J = 13.6, 5.6 Hz, 2H), 2.08 (d, J = 11.4 Hz, 3H),; 652.3[M + H]⁺ 1.26 576

N-(2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,4- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.16 (s, 1H), 9.23 (s, 1H), 8.33 (s, 1H), 7.89 (s, 1H), 7.32 (ddd, J = 9.4, 7.2, 1.9 Hz, 1H), 7.25 (dd, J = 11.3, 4.7 Hz, 1H), 6.94 (s, 1H), 6.70 (dd, J = 17.0, 10.2 Hz, 1H), 6.29- 6.22 (m, 1H), 6.18(s, 1H), 5.75 (d, J = 5.1 Hz, 1H), 5.72-5.68 (m, 1H), 4.33 (q, J = 3.7 Hz, 1H), 4.19-4.11 (m, 2H), 4.06 (d, J = 7.6 Hz, 2H), 3.82 (s, 3H), 3.46 (d, J = 11.7 Hz, 1H), 3.30-3.21 (m, 3H), 3.01- 2.90 (m, 1H), 2.85-2.76 (m, 2H), 2.69 (d, J = 10.7 Hz, 3H), 2.33 (d, J = 7.7 Hz, 1H), 2.24 (d, J = 10.4 Hz, 2H), 2.09 (d, J = 12.6 Hz, 2H), 1.17 (d, J = 6.3 Hz, 6H),; 668.3[M + H]⁺ 1.35 577

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.04 (s, 1H), 7.86 (s, 1H), 7.25- 7.17 (m, 1H), 7.12-7.08 (m, 2H), 6.64 (s, 1H), 6.31-6.20 (m, 2H), 5.68-5.64 (m, 1H), 5.38 (dd, J = 8.4, 4.7 Hz, 1H), 4.00 (td, J = 7.8, 4.3 Hz, 1H), 3.84-3.77 (m, 2H), 3.75 (s, 3H), 3.47 (dd, J = 10.7, 4.4 Hz, 1H), 3.34-3.23 (m, 2H), 3.23- 3.16(m, 1H), 3.01 (d, J = 2.2 Hz, 2H), 2.78 (s, 5H), 2.69-2.56 (m, 2H), 2.32 (ddd, J = 19.2, 9.4, 5.4 Hz, 1H), 2.22-2.03 (m, 2H); 566.4 [M + H]⁺ 1.20 578

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.02 (s, 1H), 7.69 (s, 1H), 7.25- 7.17 (m, 1H), 7.12-7.04 (m, 2H), 6.55-6.42 (m, 2H), 6.22 (td, J = 4.1, 1.8 Hz, 2H), 5.64 (dd, J = 10.3, 1.4 Hz, 1H), 5.38 (dd, J = 8.5, 4.6 Hz, 1H), 3.99 (td, J = 7.8, 4.3 Hz, 1H), 3.84-3.75 (m, 1H), 3.72 (s, 3H), 3.67 (t, J = 4.6 Hz, 4H), 3.28 (dd, J = 9.4, 6.5 Hz, 1H), 3.21- 3.12 (m, 3H), 2.72-2.55 (m, 5H), 2.55 (d, J = 8.4 Hz, 9H), 2.23- 2.07 (m, 2H), 1.86 (dq, J = 12.2, 8.5 Hz, 1H); 608.4[M + H]⁺ 1.18 579

N-(5-((6-((R)-3-(3,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.14 (s, 1H), 7.69 (s, 1H), 7.39- 7.32 (m, 1H), 7.27-7.19 (m,2H), 6.66 (s, 1H), 6.53 (dd, 17.0, 10.2 Hz, 1H), 6.40-6.30 (m, 2H), 5.79 (dd, J = 10.2, 1.5 Hz, 1H), 5.53 (dd, J = 8.5, 4.7 Hz, 1H), 4.13 (td, J = 7.9, 4.2 Hz, 1H), 3.95 (d, J = 7.9 Hz, 1H), 3.86 (s, 3H), 3.75 (t, J = 4.6 Hz, 4H), 3.39-3.24 (m, 8H), 3.01-2.91 (m, 1H), 2.84-2.73 (m, 1H), 2.68 (s, 1H), 2.66-2.49 (m, 4H), 2.38-2.27 (m, 1H), 2.27- 2.18 (m, 1H), 1.91 (dq, J = 17.6, 8.8 Hz, 1H); 608.4 [M + H]⁺ 1.17 580

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 8.95 (s, 1H), 8.59 (s, 1H), 8.14(s, 1H), 7.40 (d, J = 7.7 Hz, 2H), 7.34 (d, J = 7.9 Hz, 2H), 7.20 (t, J = 7.9 Hz, 2H), 6.82 (s, 1H), 6.65 (dd, J = 16.8, 10.2 Hz, 2H), 6.34(s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.69 (dd, J = 9.2, 5.0 Hz, 2H), 4.19- 4.10 (m, 2H), 3.79 (s, 3H), 3.15 (S, 4H), 3.09 (s, 3H), 3.00 (s, 2H), 2.43 (d, J = 8.1 Hz, 9H), 1.84 (d, J = 12.1 Hz, 3H), 1.68 (s, 6H), 0.96 (d, J = 6.5 Hz, 7H),; 675.5[M + H]⁺ 1.25 581

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4,4- difluoro-[1,4′- bipiperidine]-1′-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.17- 8.12 (m, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.3 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.75-5.67 (m, 2H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.79 (s, 3H), 3.32 (s, 4H), 3.06 (d, J = 11.2 Hz, 2H), 2.82 (tq, J = 8.1, 4.1 Hz, 1H), 2.66 (t, J = 5.7 Hz, 5H), 2.42 (s,4H), 2.08(ddt, J = 11.7, 7.8, 4.1 Hz, 1H), 2.00 (s, 1H), 1.95 (td, J = 13.2, 12.4, 6.2 Hz, 5H), 1.77 (dd, J = 14.2, 8.5 Hz, 5H),; 668.5[M + H]⁺ 1.36 582

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(4- propylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.59 (s, 1H), 8.16-8.12 (m, 2H), 7.40 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.4 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.74-5.66 (m, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (s, 3H), 3.04 (d, J = 10.7 Hz, 3H), 2.83 (dtd, J = 11.9, 8.0, 3.8 Hz, 2H), 2.66 (t, J = 11.6 Hz, 3H), 2.54 (s, 2H), 2.42 (s, 4H), 2.37 (d, J = 7.9 Hz, 4H), 2.24-2.17 (m, 3H), 2.13- 2.01 (m, 2H), 1.84 (d, J = 13.9 Hz, 3H), 1.78 (s, 3H), 1.71 (t, J = 11.8 Hz, 3H), 1.42 (h, J = 7.3 Hz, 3H), 0.85 (t, J = 7.4 Hz, 4H),; 675.6[M + H]⁺ 1.26 583

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.06 (s, 1H), 8.47 (s, 1H), 8.16 (d, J = 1.0 Hz, 1H), 7.40 (dd, J = 7.9, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.4 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.99 (s, 1H), 6.43-6.33 (m, 2H), 6.21 (dd, J = 17.0, 2.2 Hz, 1H), 5.74-5.67 (m, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.80 (s, 3H), 2.84 (dt, J = 12.9, 4.8 Hz, 4H), 2.71 (S, 3H), 2.43 (s, 4H), 2.32 (t, J = 5.8 Hz, 2H), 2.20 (s, 7H), 2.08 (tdd, J = 11.5, 8.3, 4.1 Hz, 2H), 1.86 (s, 4H),; 566.4[M + H]⁺ 1.31 584

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 0.9 Hz, 1H), 7.40 (dd, J = 7.7, 1.3 Hz, 1H), 7.34 (dd, J = 8.0, 1.4 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.84 (s, 1H), 6.59 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.20 (dd,J = 17.0, 2.0 Hz, 1H), 5.71 (td, J = 9.0, 8.3, 3.5 Hz, 2H), 4.15 (td, J = 7.9, 3.9 Hz, 1H), 3.81 (s, 3H), 2.90-2.76 (m, 6H), 2.42 (s, 4H), 2.25 (s, 3H), 2.14-2.00 (m, 2H), 1.82 (s, 4H),; 564.4[M + H]⁺ 1.25 585

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 1.0 Hz, 1H), 7.40 (dd, J = 7.8, 1.4 Hz, 1H), 7.34 (dd, J = 8.0, 1.4 Hz, 1H), 7.20 (t, J = 7.9 Hz, 1H), 6.86 (s, 1H), 6.59 (dd, J = 17.0, 10.1 Hz, 1H), 6.36 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (td, J = 8.6, 7.5, 3.4 Hz, 2H), 4.15 (td, J = 7.8, 3.8 Hz, 1H), 3.81 (s, 4H), 2.91-2.77 (m, 6H), 2.41 (d, J = 13.2 Hz, 6H), 2.07 (dtd, J = 19.3, 7.4, 6.6, 4.5 Hz, 2H), 1.87 (s, 4H), 1.03 (t, J = 7.2 Hz, 4H),; 578.4[M + H]⁺ 1.26 586

N-(5-((6-((R)-3-(3- chloro-2- methylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.37 (s, 1H), 8.46 (s, 1H), 8.11 (d, J = 0.9 Hz, 1H), 7.39 (dd, J = 7.8, 1.3 Hz, 1H), 7.34 (dd, J = 7.9, 1.3 Hz, 2H), 7.19 (t, J = 7.8 Hz, 2H), 6.53-6.41 (m, 2H), 6.18 (dd, J = 17.0, 2.1 Hz, 2H), 5.71-5.68 (m, 1H), 4.13 (td, J = 7.9, 3.8 Hz, 2H), 3.79 (s, 4H), 3.37 (td, J = 9.5, 6.4 Hz, 2H), 3.26-3.16 (m, 4H), 2.81 (dtd, J = 12.0, 8.0, 3.8 Hz, 2H), 2.42 (s, 4H), 2.16 (s, 7H), 2.07 (tdt, J = 10.8, 7.0, 3.4 Hz, 4H), 1.71 (p, J = 10.6, 10.0 Hz, 2H),; 578.4[M + H]⁺ 1.22 587

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(3-(4- cyclopropylpiperazine- 1-yl)azetidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.31 (s, 1H), 8.04 (s, 1H), 7.13-7.05 (m, 2H), 7.00- 6.93 (m, 1H), 6.75-6.66 (m, 1H), 6.49 (s, 1H), 6.42-6.36 (m, 1H), 6.36-6.22 (m, 2H), 5.81-5.71 (m, 1H), 5.64 (dd, J = 8.6, 4.6 Hz, 1H), 4.17-3.90 (m, 4H), 3.85 (s, 3H), 3.83-3.65 (m, 3H), 3.29- 3.19 (m, 1H), 2.80-2.57 (m, 5H), 2.55- 2.23 (m, 5H), 0.50-0.37 (m, 4H),; 649.40[M + H]⁺ 1.24 588

N-(2-(3-(4- cyclopropylpiperazine- 1-yl)azetidine-1- yl)-5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.31 (s, 1H), 8.03 (s, 1H), 7.08 (s, 1H), 7.04-6.93 (m, 2H), 6.75-6.63 (m, 2H), 6.48 (s, 1H), 6.44-6.35 (m, 1H), 6.35-6.19 (m, 2H), 5.80-5.71 (m, 1H), 5.65 (dd, J = 8.6, 4.4 Hz, 1H), 4.16-3.89 (m, 4H), 3.85 (s, 3H), 3.80-3.55 (m, 3H), 3.29-3.19 (m, 1H), 2.85-2.57 (m, 5H), 2.49-2.27 (m, 5H), 0.52-0.35 (m, 4H); 633.48[M + H]⁺ 1.18 589

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 7.00-6.91 (m, 2H), 6.75 (s, 1H), 6.72 (s, 1H), 6.40-6.18 (m, 2H), 5.74 (dd, J = 10.1, 1.0 Hz, 1H), 5.66 (dd, J = 8.7, 4.5 Hz, 1H), 4.16 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.82-3.74 (m, 4H), 3.12-3.02 (m, J = 10.2 Hz, 2H), 2.82-2.67 (m, 3H), 2.67-2.56 (m, 4H), 2.38-2.24 (m, 2H), 2.13-2.04 (m, 2H), 1.75-1.56 (m, 2H); 638.42[M + H]⁺ 1.30 590

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine- 1-yl)-5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.49 (s, 1H), 8.35 (s, 1H), 7.14-7.06 (m, 2H), 6.97 (d, J = 8.3 Hz, 1H), 6.75 (s, 1H), 6.71 (s, 1H), 6.44-6.12 (m, 3H), 5.76-5.70 (m, 1H), 5.65 (dd, J = 8.7, 4.5 Hz, 1H), 4.47 (s, 1H), 4.19-4.01 (m, 3H), 3.91-3.82 (m, 4H), 3.72-3.65 (m, 1H), 3.27-3.17 (m, 1H), 3.08-3.00 (m, 2H), 2.82-2.70 (m, 3H), 2.70-2.60 (m, 1H), 2.59-2.51 (m, 1H), 2.38-2.28 (m, 1H), 2.07-1.93 (m, 3H), 1.90-1.74 (m, 3H); 650.42[M + H]⁺ 1.30 591

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4- hydroxypiperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.50 (s, 1H), 8.36 (s, 1H), 7.10 (d, J = 9.4 Hz, 1H), 7.04-6.98 (m, 1H), 6.99-6.94 (m, 1H), 6.77 (s, 1H), 6.71 (s, 1H), 6.40- 6.22 (m, 2H), 5.75 (dd, J = 9.9, 1.4 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.16 (td, J = 8.1, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.98-3.89 (m, 1H), 3.85 (s, 3H), 3.09-3.00 (m, 2H), 2.82-2.71 (m, 3H), 2.39-2.28 (m, 1H), 2.12-2.02 (m, 2H), 1.82-1.71 (m, 2H),; 569.32[M + H]⁺ 1.47 592

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hept- ane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.48 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.5, 2.2 Hz, 1H), 7.00-6.92 (m, 2H), 6.76 (s, 1H), 6.72 (d, J = 1.0 Hz, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.8, 4.6 Hz, 1H), 4.44 (t, J = 2.0 Hz, 1H), 4.20-4.00 (m, 3H), 3.85 (s, 3H), 3.77 (s, 1H), 3.66 (dd, J = 7.9, 1.6 Hz, 1H), 3.14 (dd, J = 9.9, 1.7 Hz, 1H), 3.07-2.99 (m, 2H), 2.84-2.71 (m, 3H), 2.63-2.54 (m, 1H), 2.51 (d, J = 9.9 Hz, 1H), 2.40- 2.27 (m, 1H), 2.08-2.00 (m, 1H), 1.99- 1.88 (m, 2H), 1.86-1.79 (m, 1H), 1.75-1.70 (m, 1H), 1.70-1.63 (m, 2H),; 650 4 [M + H] 1.26 593

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.46 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.4, 2.1 Hz, 1H), 7.00-6.88 (m, 2H), 6.78-6.69 (m, 2H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.20-4.11 (m, 1H), 4.11-4.00 (m, 1H), 3.84 (s, 3H), 3.09- 3.02 (m, 2H), 2.82-2.55 (m, 12H), 2.37-2.27 (m, 2H), 2.14-2.06 (m, 2H), 1.74-1.70 (m, 1H), 1.69-1.60 (m,2H), 1.08 (d, J = 6.5 Hz, 6H),; 679.4 [M + H]⁺ 1.23 594

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino)- piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.43 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.5, 2.1 Hz, 1H), 7.00- 6.93 (m, 2H), 6.73 (d, J = 14.5 Hz, 2H), 6.37 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 17.0, 10.0 Hz, 1H), 5.75 (dd, J = 10.0, 1.6 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.20-4.11 (m, 1H), 4.11-4.00 (m, 1H), 3.85 (s, 3H), 3.77-3.65 (m, 2H), 3.10-3.03 (m, 2H), 2.88 (d, J = 10.8 Hz, 2H), 2.82-2.76 (m, 1H), 2.76- 2.66 (m, 2H), 2.40-2.25 (m, 2H), 2.11- 2.02 (m, 2H), 1.90 (t, J = 10.6 Hz, 2H), 1.83-1.72 (m, 1H), 1.70-1.59 (m, 2H), 1.21 (d,6H),; 666.4 [M + H]⁺ 1.33 595

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-((S)- 2-methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.6, 2.1 Hz, 1H), 7.01-6.88 (m, 2H), 6.77-6.68 (m, 2H), 6.37 (dd, d = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.20-4.11 (m, 1H), 4.11-3.99 (m, 1H), 3.97-3.88 (m, 1H), 3.85 (s, 3H), 3.76-3.69 (m, 1H), 3.69-3.61 (m, 1H), 3.07 (d, J = 11.3 Hz, 2H), 2.87 (dd, J = 22.0, 11.1 Hz, 2H), 2.82-2.67 (m, 3H), 2.38-2.26 (m, 3H), 2.11-2.04 (m, 2H), 2.02- 1.92 (m, 1H), 1.72-1.65 (m, 2H), 1.65- 1.62 (m, 1H), 1.19 (d, 3H),; 652.4 [M + H]+ 1.30 596

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-((R)-2- methylmorpholino)pip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.4, 2.1 Hz, 1H), 7.01-6.93 (m, 2H), 6.73 (d, J = 14.4 Hz, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.1 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.8, 4.6 Hz, 1H), 4.20- 4.13 (m, 1H), 4.13-4.00 (m, 1H), 3.97- 3.88 (m, 1H), 3.85 (s, 3H), 3.77- 3.69 (m, 1H), 3.69-3.61 (m, 1H), 3.11- 3.03 (m, 2H), 2.94-2.81 (m, 2H), 2.81-2.76 (m, 1H), 2.76-2.66 (m, 2H), 2.40-2.16 (m, 3H), 2.11-2.02 (m, 2H), 2.01-1.92 (m, 1H), 1.73- 1.59 (m, 3H), 1.19 (d, 3H),; 652.4 [M + H]⁺ 1.28 597

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.49 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.5, 2.0 Hz, 1H), 7.02-6.93 (m, 2H), 6.82 (s, 1H), 6.72 (s, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.75 (dd,J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.69 (dt, J = 21.2, 6.3 Hz, 4H), 4.21-4.11 (m, 1H), 4.11-4.00 (m, 1H), 3.85 (s, 3H), 3.61 (p, J = 6.4 Hz, 1H), 3.01-2.89 (m, 4H), 2.84-2.71 (m, 1H), 2.64-2.42 (m, 4H), 2.40-2.27 (m, 1H), 1.76-1.68 (m, 1H),; 610.4 [M + H]⁺ 1.25 598

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.04 (s, 1H), 9.06 (s, 1H), 8.98 (s, 1H), 8.21 (s, 1H), 8.11 (s, 1H), 7.37 (td, J = 7.9, 2.4 Hz, 2H), 6.86 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.34 (s, 1H), 6.23 (dd, J = 17.0, 1.9 Hz, 1H), 5.83-5.69 (m, 2H), 4.18 (td, J = 7.8, 3.8 Hz, 1H), 4.08-4.01 (m, 2H), 3.93 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.72 (t, J = 12.2 Hz, 2H), 3.49 (d, J = 12.1 Hz, 2H), 3.34 (d, J = 12.5 Hz, 1H), 3.25-3.10 (m,4H), 2.93 (dtd, J = 12.1,8.0, 3.9 Hz, 1H), 2.75 (t, J = 11.8 Hz, 2H), 2.13 (ddq, J = 12.9, 8.2, 4.9 Hz, 3H), 1.91 (s, 2H),; 638.5[M + H]* 1.25 599

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.31 (s, 1H), 8.64 (s, 1H), 8.15 (s, 1H), 7.66 (s, 1H), 7.48 (td, J = 8.5, 6.2 Hz, 1H), 7.31 (td, J = 8.8, 1.7 Hz, 1H), 6.65 (s, 1H), 6.50 (dd, 17.0, 10.2 Hz, 1H), 6.31 (s, 1H), 6.21 (dd, J = 17.0, 2.1 Hz, 1H), 5.71 (td, J = 9.5, 3.6 Hz, 2H), 4.17 (td, J = 7.9, 3.7 Hz, 1H), 3.93 (d, J = 6.5 Hz, 1H), 3.82 (s, 4H), 3.37 (s, 2H), 3.32 (d, J = 3.6 Hz, 1H), 3.20 (q, J = 10.8, 9.5 Hz, 1H), 2.83 (d, J = 5.3 Hz, 7H), 2.34 (d, J = 11.0 Hz, 1H), 2.27-2.17 (m, 1H), 2.15-2.06 (m, 1H),; 600.4[M + H]⁺ 1.28 600

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.81 (s, 1H), 8.27 (s, 1H), 8.19 (s, 1H), 7.48 (td, J = 8.5, 6.2 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.84 (s, 1H), 6.66 (dd, J = 17.0, 10.1 Hz, 1H), 6.41 (s, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.73 (ddd, J = 19.1,9.4, 3.6 Hz, 2H), 4.20 (td, J = 7.8, 3.6 Hz, 1H), 3.89 (q, J = 7.8 Hz, 1H), 3.83 (s, 3H), 3.58 (d, J = 11.5 Hz, 2H), 3.31-3.18 (m, 6H), 3.04 (t, J = 12.3 Hz, 2H), 2.80 (tt, J = 8.0, 4.0 Hz, 1H), 2.28-2.16 (m, 1H), 1.28 (t, J = 7.2 Hz, 3H),; 600.4[M + H]⁺ 1.31 601

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(2-chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (s, 1H), 8.76 (s, 1H), 8.16 (d, J = 13.4 Hz, 2H), 7.43-7.30 (m, 3H), 6.84 (s, 1H), 6.61 (dd, J = 17.3, 9.8 Hz, 1H), 6.39 (s, 1H), 6.23 (d, J = 17.0 Hz, 1H), 5.84-5.68 (m, 2H), 4.53 (d, J = 13.7 Hz, 1H), 4.20-4.12 (m, 1H), 4.06 (d, J = 13.5 Hz, 1H), 3.90 (d, J = 8.4 Hz, 1H), 3.82 (s, 3H), 3.52 (s, 2H), 3.45- 3.32 (m, 2H), 3.17 (s, 3H), 3.02 (s, 1H), 2.91 (d, J = 10.7 Hz, 2H), 2.73(d, J = 12.1 Hz, 2H), 2.08 (d, J = 7.1 Hz, 6H), 1.91 (s, 2H),; 679.4[M + H]⁺ 1.23 602

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.14 (d, J = 1.0 Hz, 1H), 7.43 (d, J = 7.9 Hz, 1H), 7.30 (td, J = 8.1,5.3 Hz, 1H), 7.15 (td, J = 8.8, 8.2, 1.5 Hz, 1H), 6.90 (s, 1H), 6.54 (dd, J = 16.9, 10.3 Hz, 1H), 6.37 (ddd, J = 25.3, 16.8, 1.7 Hz, 1H), 6.17-6.12 (m, 1H), 5.89-5.75 (m, 2H), 4.12 (td, J = 8.0, 4.1 Hz, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.86 (s, 4H), 3.72 (hept, J = 6.3 Hz, 2H), 3.22 (d, J = 7.4 Hz, 2H), 3.18-3.10 (m, 3H), 3.02-2.88 (m, 6H), 2.86-2.76 (m, 4H), 2.61-2.54 (m, 1H), 2.19 (ddd, J = 16.2, 8.1,4.3 Hz, 1H), 2.04 (d, J = 12.3 Hz, 2H), 1.84-1.74 (m, 2H), 1.18 (tt, J = 7.4, 1.3 Hz, 1H),; 665.5[M + H]⁺ 1.19 603

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.93 (s, 1H), 8.71 (d, J = 9.5 Hz, 1H), 8.35 (s, 1H), 7.50 (td, J = 8.5, 6.2 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.95 (s, 1H), 6.46 (d, J = 25.1 Hz, 1H), 6.23 (ddd, J = 17.1, 5.5, 2.1 Hz, 1H), 6.09 (dd, J = 17.3, 10.1 Hz, 1H), 5.77- 5.65 (m, 2H), 4.19 (tt, J = 7.9, 3.9 Hz, 1H), 3.93-3.78 (m, 4H), 3.62-3.47 (m, 3H), 3.16 (d, J = 5.3 Hz, 1H), 3.06 (dd, J = 14.9, 7.5 Hz, 4H), 2.96 (s, 1H), 2.81 (dp, J = 12.6, 3.9 Hz, 1H), 2.68-2.60 (m, 3H), 2.51 (p, J = 1.9 Hz, 2H), 2.23 (ddd, J = 12.9, 8.5, 5.1 Hz, 1H),; 588.3[M + H]⁺ 1.36 604

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.43 (d, J = 31.7 Hz, 1H), 8.18 (dd, J = 3.3, 1.0 Hz, 1H), 7.50 (td, J = 8.6, 6.1 Hz, 1H), 7.19-6.91 (m, 2H), 6.53 (dd, J = 7.6, 1.1 Hz, 1H), 6.40-6.05 (m, 2H), 5.84-5.70 (m, 2H), 4.15 (td, J = 7.9, 4.0 Hz, 1H), 3.99 (td, J = 8.0, 2.1 Hz, 1H), 3.91 (d, J = 9.9 Hz, 3H), 3.81 (t, J = 7.6 Hz, 1H), 3.66 (t, J = 7.9 Hz, 1H), 3.34(S, 3H), 3.17 (t, J = 4.9 Hz, 1H), 2.86 (d, J = 8.4 Hz, 2H), 2.75 (t, J = 7.6 Hz, 1H), 2.26 (ddd, J = 12.8,8.5,4.8 Hz, 1H), 1.38 (s, 6H),; 586.3[M + H]⁺ 1.30 605

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.83 (d, J = 8.4 Hz, 1H), 8.68 (d, J = 4.5 Hz, 1H), 8.59 (d, J = 8.3 Hz, 1H), 8.44 (d, J = 2.2 Hz, 1H), 8.12 (t, J = 7.7 Hz, 1H), 8.00 (dq, J = 8.1,5.6, 3.8 Hz, 3H), 7.95-7.82 (m, 4H), 5.07 (p, J = 7.2 Hz, 1H), 3.67 (s, 4H), 3.48 (d, J = 7.3 Hz, 2H), 3.20 (s, 4H), 3.11 (dtd, J = 15.2, 8.4, 8.0, 3.7 Hz, 2H), 2.07 (dd, J = 13.4, 2.8 Hz, 1H), 2.01 (dd, J = 15.3, 3.5 Hz, 2H), 1.91 (qd, J = 13.2, 10.6, 5.1 Hz, 5H), 1.79 (td, J = 13.1, 12.7, 5.4 Hz, 2H), 1.69 (td, J = 13.6,4.3 Hz, 2H), 1.48 (d, J = 7.0 Hz, 4H),; 669.4[M + H]⁺ 1.28 606

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.04 (s, 1H), 8.21 (s, 1H), 8.11 (s, 1H), 7.47 (td, J = 8.5, 6.2 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.85 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.33 (s, 1H), 6.23 (dd, J = 16.9, 2.0 Hz, 1H), 5.77-5.67 (m, 2H), 4.21 (td, J = 7.9, 3.7 Hz, 1H), 3.91 (q, J = 8.2 Hz, 1H), 3.81 (s, 3H), 3.68-3.34 (m, 4H), 3.16 (d, J = 10.9 Hz, 4H), 2.85 (s, 4H), 2.74 (t, J = 11.7 Hz, 3H), 2.30- 2.19 (m, 1H), 2.03 (s, 2H), 1.88 (d, J = 20.1 Hz, 2H),; 656.4[M + H]⁺ 1.35 607

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4- ((1S,4S)-5-ethyl-2,5- diazabicyclo[2.2.1]hep- tane-2-yl)piperidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.47 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (dd,J = 8.1, 1.6 Hz, 1H), 7.37 (dd, J = 7.9, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94 (s, 1H), 6.76 (d, J = 3.0 Hz, 2H), 6.40-6.32 (m, 1H), 6.25 (dd, J = 17.4, 10.5 Hz, 1H), 5.96 (dd, J = 8.9, 4.4 Hz, 1H), 5.73 (dd, J = 9.9, 1.6 Hz, 1H), 4.14- 4.04 (m, 2H), 3.85 (s, 3H), 3.31 (dd, J = 10.3, 4.4 Hz, 1H), 3.22-3.15 (m, 1H), 3.01 (s, 2H), 2.94 (dq, J = 8.1, 4.0 Hz, 1H), 2.79 (d, J = 11.9 Hz, 2H), 2.50 (s, 1H), 2.28-2.16 (m, 2H), 2.05 (d, J = 9.7 Hz, 3H), 1.90 (t, J = 12.4 Hz, 2H), 1.86-1.80 (m, 1H), 1.76-1.66 (m, 2H), 1.36 (s, 2H), 1.32-1.23 (m, 4H),; 693.4[M + H] 1.22 608

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.33 (s, 1H), 8.85 (s, 1H), 8.42- 8.22 (m, 2H), 7.62-7.54 (m, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19(t, J = 7.9 Hz, 1H), 6.74 (d, J = 3.6 Hz, 2H), 6.42-6.23 (m, 2H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.76 (dd, J = 9.8, 1.7 Hz, 1H), 4.16-4.04 (m, 2H), 3.85 (s, 3H), 3.66 (td, J = 6.7, 4.0 Hz, 2H), 3.09 (qd, J = 7.5, 4.1 Hz, 4H), 2.99- 2.92 (m, 1H), 2.12 (s, 3H), 1.56 (dd, J = 12.2, 7.1 Hz, 8H), 1.45 (d, J = 6.6 Hz, 4H),; 695.4[M + H] 1.31 609

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (d, J = 7.8 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 2H), 6.40-6.31 (m, 1H), 6.24 (dd, J = 17.0, 9.9 Hz, 1H), 5.96 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.17-4.04 (m, 2H), 3.85 (s, 3H), 3.31 (dd, J-7.3, 5.3 Hz, 1H), 3.06 (d, J = 11.6 Hz, 2H), 2.98-2.88 (m, 2H), 2.74 (q, J = 12.5 Hz, 8H), 2.33 (s, 2H), 2.25 (s, 2H), 2.09 (d, J = 12.4 Hz, 2H), 1.84 (t, J = 6.9 Hz, 1H), 1.67 (d, J = 12.3 Hz, 6H),; 695.5[M + H] 1.28 610

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyljacrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (S, 1H), 8.46 (s, 1H), 8.37-8.32 (m, 1H), 7.59 (t, J = 7.5 Hz, 1H), 7.37 (dd, J = 8.0, 1.6 Hz, 1H), 7.19 (td, J = 7.9, 3.3 Hz, 1H), 6.94 (s, 1H), 6.76 (s, 1H), 6.61 (d, J = 54.6 Hz, 1H), 6.43-6.17 (m, 2H), 5.96 (dt, J = 10.8, 5.3 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.17-4.02 (m, 2H), 3.85 (s, 3H), 3.27 (d, J = 7.4 Hz, 2H), 3.19 (q, J = 5.9 Hz, 2H), 3.04 (d, J = 11.0 Hz, 2H), 2.95 (dd, J = 8.5, 4.5 Hz, 1H), 2.79-2.70 (m, 2H), 2.62 (s, 6H), 2.37 (d, J = 8.1 Hz, 4H), 2.08 (d, J = 13.2 Hz, 2H), 1.94-1.83 (m, 2H), 1.47 (d, J = 6.5 Hz, 1H),; 681.4[M + H] 1.19 611

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.34 (d, J = 8.5 Hz, 1H), 7.58 (t, J = 8.3 Hz, 1H), 7.41-7.32 (m, 1H), 7.19 (td, J = 7.9, 4.5 Hz, 1H), 6.96 (dd, J = 17.1, 11.1 Hz, 2H), 6.75 (s, 1H), 6.43-6.17 (m, 2H), 5.95 (t, J = 9.9 Hz, 1H), 5.74 (d, J = 9.4 Hz, 1H), 5.35 (s, 1H), 4.12-4.06 (m, 1H), 3.95-3.89 (m, 2H), 3.85 (d, J = 1.2 Hz, 2H), 3.39-3.32 (m, 4H), 3.30 (s, 3H), 3.21-3.16 (m,4H), 3.05 (t, J = 12.1 Hz, 4H), 2.79 (d, J = 6.7 Hz, 2H), 2.73 (d, J = 17.7 Hz, 4H), 2.56 (s, 3H), 2.21 (d, J = 4.3 Hz, 1H), 2.09 (d, J = 12.7 Hz, 2H), 2.02 (d, J = 10.0 Hz, 2H), 1.85 (t, J = 6.2 Hz, 2H),; 75O.5[M + H] 1.19 612

N-(2-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)- 3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.68 (s, 1H), 8.35 (s, 1H), 7.96 (s, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.32-7.28 (m, 1H), 6.88 (s, 1H), 6.71 (s, 1H), 6.64(s, 1H), 6.39 (d, J = 16.9 Hz, 1H), 6.28 (dd, J = 16.8, 10.0 Hz, 1H), 5.76 (d, J = 10.0 Hz, 1H), 5.64 (dd, J = 8.7, 4.6 Hz, 1H), 4.65 (s, 1H), 4.18-4.10 (m, 1H), 4.03 (dd, J = 14.8, 7.9 Hz, 2H), 3.86 (s, 3H), 3.75 (d, J = 7.8 Hz, 1H), 3.43 (d, J = 10.2 Hz, 1H), 3.23 (d, J = 10.1 Hz, 1H), 2.81-2.70 (m, 1H), 2.61 (s, 1H), 2.37-2.27 (m, 1H), 2.08 (d, J = 10.0 Hz, 1H), 1.99 (d, J = 10.1 Hz, 1H),; 583.2[M + H] 1.46 613

N-(5-((6-((R)-3-(2,3- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((2- (dimethylamino)ethy l)(methyl)amino)piper- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.40 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (d, J = 7.9 Hz, 1H), 7.37 (dd, J = 8.0, 1.5 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.94 (s, 1H), 6.75 (s, 2H), 6.38-6.32 (m, 2H), 6.00- 5.95 (m, 1H), 5.76 (dd, J = 8.6, 3.0 Hz, 1H), 4.17-4.04 (m, 3H), 3.85 (s, 3H), 3.12-3.04 (m, 4H), 3.00-2.92 (m, 3H), 2.72 (s, 6H), 2.43 (s, 3H), 2.27-2.17 (m, 2H), 2.04-1.97 (m, 3H), 1.83-1.77 (m, 2H),; 669.4 [M + H]⁺ 1.21 614

N-(5-((6-((R)-3-(2,3- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-morpholino-[1,4′- bipiperidine]-1′- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.35 (s, 1H), 7.59 (d, J = 7.9 Hz, 1H), 7.36 (d, J = 8.0 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 6.95 (s, 1H), 6.75 (s, 2H), 6.40- 6.31 (m, 1H), 6.25 (dd, J = 16.8, 10.0 Hz, 1H), 5.96 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16-4.03 (m, 2H), 3.85 (s, 3H), 3.73 (t, J = 4.6 Hz, 4H), 3.10 (dd, J = 26.9, 11.1 Hz, 4H), 2.99-2.90 (m, 1H), 2.72 (q, J = 12.3 Hz, 2H), 2.57 (t, J = 4.7 Hz, 4H), 2.40 (S, 1H), 2.25- 2.19 (m, 3H), 2.05 (d, J = 12.3 Hz, 2H), 1.88 (d, J = 12.6 Hz, 3H), 1.72- 1.57 (m, 4H),; 737.47 [M + H]⁺ 1.22 615

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-morpholinophenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.51 (s, 1H), 8.37 (s, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.2 Hz, 1H), 7.30 (dd, J = 8.2, 2.1 Hz, 1H), 6.97 (s, 1H), 6.78 (s, 1H), 6.72 (s, 1H), 6.37 (d, J = 16.9 Hz, 1H), 6.27 (dd, J = 16.9, 10.0 Hz, 1H), 5.76 (d, J = 10.0 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.21-4.13 (m, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.91- 3.87 (m, 4H), 3.87 (s, 3H), 2.94- 2.84 (m, 4H), 2.82-2.72 (m, 1H), 2.38-2.28 (m, 1H),; 571.2 [M + H]⁺ 1.62 616

N-(2-((2- (dimethylamino)ethyl) (methyl)amino)-5-((6- ((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 9.59 (s, 1H), 8.89 (s, 1H), 8.32 (s, 1H), 7.60 (s, 1H), 7.46 (d, J = 7.4 Hz, 2H), 7.38 (d, J = 7.6 Hz, 1H), 7.29 (t, J = 7.8 Hz, 1H), 6.76 (s, 1H), 6.70 (s, 1H), 6.56 (dd, J = 16.9, 10.1 Hz, 1H), 6.41 (dd, J = 16.9, 1.9 Hz, 1H), 5.69 (td, J = 10.1,3.2 Hz, 2H), 4.15 (dd, J = 8.0, 4.4 Hz, 1H), 4.09 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.05 (s, 1H), 3.03 (t, J = 5.9 Hz, 2H), 2.78 (dq, J = 12.0, 3.7 Hz, 1H), 2.67 (s, 3H), 2.63 (t, J = 6.0 Hz, 2H), 2.43 (s, 6H), 2.36 (dt, J = 12.2, 4.0 Hz, 1H); 542.4[M + H]⁺ 1.20 617

N-(5-((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87-8.66 (m, 1H), 8.48-8.37 (m, 1H), 8.35-8.26 (m, 1H), 7.59 (d, J = 1.8 Hz, 1H), 7.55 (s, 1H), 7.45 (d, J = 7.7 Hz, 1H), 7.37 (dt, J = 7.8, 1.4 Hz, 1H), 7.32-7.27 (m, 1H), 6.80 (d, J = 2.4 Hz, 1H), 6.63 (d, J = 6.7 Hz, 1H), 6.42-6.31 (m, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.14 (td, J = 8.0, 4.3 Hz, 1H), 4.04 (q, J = 8.2 Hz, 1H), 3.85 (s, 3H), 3.05 (s, 1H), 3.04-2.89 (m, 4H), 2.84 (td, J = 6.2, 2.2 Hz, 1H), 2.76 (dq, J = 7.7, 3.8, 3.3 Hz, 4H), 2.45 (d, J = 2.9 Hz, 3H), 2.35 (dtd, J = 12.5, 8.1,4.6 Hz, 1H),; 540.4[M + H]⁺ 1.13 618

N-(2-(4-((1S,48)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.98 (s, 1H), 9.24 (d, J = 30.9 Hz, 1H), 8.31 (s, 1H), 7.86 (d, J = 13.3 Hz, 1H), 7.49-7.37 (m, 4H), 6.90 (d, J = 6.6 Hz, 1H), 6.60 (dt,J = 17.7, 8.9 Hz, 1H), 6.26-6.21 (m, 1H), 6.08 (s, 1H), 5.79-5.73 (m, 1H), 5.51 (t, J = 7.3 Hz, 1H), 4.72-4.62 (m, 2H), 4.57 (s, 1 H), 4.44 (d, J = 9.2 Hz, 1H), 4.31 (d, J = 4.3 Hz, 2H), 4.24 (s, 2H), 4.04 (d, J = 7.8 Hz, 1H), 3.81 (s, 3H), 3.70 (d, J = 10.1 Hz, 1H), 3.49-3.43 (m, 1H), 3.20 (d, J = 22.6 Hz, 3H), 2.93 (dd, J = 7.9, 4.1 Hz, 1H), 2.82 (s, 2H), 2.38-2.26 (m, 2H), 2.08 (d, J = 8.7 Hz, 3H),; 622.3[M + H]⁺ 1.11 619

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine- 1-yl)-5-((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.88 (s, 1H), 9.23 (d, J = 30.8 Hz, 1H), 8.30 (s, 1H), 7.88 (d, J = 12.9 Hz, 1H), 7.48- 7.36 (m,4H), 6.90 (d, J = 6.7 Hz, 1H), 6.61 (td, J = 17.4, 10.2 Hz, 1H), 6.28- 6.22 (m, 1H), 6.10(s, 1H), 5.76 (t, J = 5.2 HZ, 1H), 5.55-5.46 (m, 1H), 4.73- 4.62 (m, 2H), 4.57 (s, 1H), 4.30 (d, J = 4.3 Hz, 2H), 4.24 (s, 1H), 4.20 (d, J = 10.4 Hz, 1H), 4.03 (d, J = 7.8 Hz, 2H), 3.81 (d, J = 2.1 Hz, 3H), 3.70 (d, J = 9.9 Hz, 1H), 3.51-3.41 (m, 2H), 3.29- 3.13 (m, 3H), 2.92 (d, J = 7.8 Hz, 1H), 2.83-2.67 (m, 2H), 2.30 (dd, J = 13.1, 5.1 Hz, 2H), 2.08 (d, J = 10.3 Hz, 2H),; 622.3[M + H]⁺ 1.11 620

N-(4-methoxy-2-(4- (4-methylpiperazine- 1-yl)piperidine-1-yl)- 5-((6-((R)-3-(2,3,4- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 653.5[M + H]⁺ 1.18 621

N-(4-methoxy-2-(4- morpholinopiperidine- ₁-yl)-5-(₍6-((R)-3- (2,3,4- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 640.5[M + H]⁺ 1.27 622

N-(2-((R)-3- (dimethylamino)pyrol idine-1-yl)-4- methoxy-5-((6-((R)- 3-(2,3,4- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 584.5[M + H]⁺ 1.18 623

N-(4-methoxy-2- ((R)-3- morpholinopyrolidine- 1-yl)-5-((6-((R)-3- (2,3,4- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanoi-d₄) δ 8.15 (s, 1H) , 7.77 (s, 1H), 7.33 (td, J = 8.2, 2.0 Hz, 1H), 7.09 (td, J = 9.3, 1.8 Hz, 1H), 6.68 (s, 1H), 6.59 (dd, J = 17.0, 10.3 Hz, 1H), 6.41-6.32 (m, 2H), 5.81- 5.72 (m, 2H), 4.15 (td, J = 7.9, 4.1 Hz, 1H), 3.98 (d, J = 8.0 Hz, 1H), 3.87 (s, 3H), 3.81 (t, J = 4.4 Hz, 4H), 3.41 (dd, J = 9.3, 6.7 Hz, 1H), 3.31 (ddd, J = 16.1, 7.6, 3.3 Hz, 5H), 2.89-2.69 (m, 5H), 2.67 (s, 8H), 2.33-2.21 (m, 2H), 2.01 (td, J = 16.9, 8.4 Hz, 1H), 1.43-1.35 (m, 4H),; 626.4 [M + H]⁺ 1.25 624

N-(4-methoxy-2-((S)-3- morpholinopyrolidine- 1-yl)-5-((6-((R)-3- (2,3,4- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 626.4 [M + H] 1.22 625

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)-3- ((dimethylamino)meth- yl)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.33 (s, 1H), 8.53 (s, 1H), 8.13 (d, J = 1.0 Hz, 1H), 7.37 (s, 1H), 7.13-7.09 (m, 3H), 6.53-6.43 (m, 2H), 6.20 (d, J = 2.1 Hz, 1H), 5.68 (dd,J = 10.2, 2.1 Hz, 1H), 5.55 (dd, J = 8.7, 5.0 Hz, 1H), 4.11 (td, J = 7.8, 3.8 Hz, 1H), 3.79 (s, 3H), 3.39-3.16 (m, 5H), 3.00 (dd, J = 9.3, 6.6 Hz, 1H), 2.75 (dtd, J = 12.0, 7.8, 3.8 Hz, 1H), 2.24 (dd, J = 7.7, 5.2 Hz, 2H), 2.14 (s, 7H), 2.05-1.93 (m, 1H), 1.56 (dq, 12.1, 7.8 Hz, 1H),; 580.4[M + H]⁺ 1.14 626

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- ((dimethylamino)meth- yl)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyljacrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.96 (s, 1H), 8.66 (s, 1H), 8.17 (s, 1H), 7.13 (td, J = 7.8, 7.2, 3.1 Hz, 4H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.1 Hz, 1H), 6.35 (s, 1H), 6.21 (dd, J = 16.9, 2.0 Hz, 1H), 5.72 (dd, J = 10.2, 2.0 Hz, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (td, J = 7.9, 3.9 Hz, 1H), 3.80 (s, 3H), 3.01-2.97 (m, 2H), 2.81-2.61 (m, 5H), 2.54 (d, J = 7.3 Hz, 2H), 2.25 (ddd, J = 12.8, 8.5, 4.8 Hz, 4H), 2.11 (d, J = 7.3 Hz, 14H), 1.95-1.87 (m, 2H), 1.68 (h, J = 8.7, 7.8 Hz, 2H), 1.36 (h, J = 6.9 Hz, 1H),; 663.5[M + H]⁺ 1.05 627

N-(5-((6-((R)-3-(3- chloro-5- fluorophenyl)isoxazol idine-2-yl)pyrimidine- 4-yl)amino)-2-(4- (dimethylamino)piper idine-1-yl)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) 3 8.86 (s, 1H), 8.50 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.10 (dt, J = 9.4, 2.2 Hz, 1H), 7.00-6.88 (m, 2H), 6.78-6.69 (m, 2H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 17.0, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.20-4.11 (m, 1H), 4.11-4.00 (m, 1H), 3.85 (s, 3H), 3.09-3.02 (m, 2H), 2.84-2.77 (m, 1H), 2.76-2.66 (m, 2H), 2.35 (s, 6H), 2.34-2.28 (m, 1H), 2.27-2.17 (m, 1H), 2.09-2.01 (m, 2H), 1.70- 1.61 (m, 2H), 1.62-1.53 (m, 1H),; 596.4 [M + H]⁺ 1.27 628

N-(2-((2- (dimethylamino)ethyl)- (methyl)amino)-4- methoxy-5-((6-((R)- 3-(2,3,6- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 10.09 (s, 1H), 8.94 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.05 (qd, J = 9.1,4.9 Hz, 1H), 6.88 (s, 1H), 6.86-6.80 (m, 1H), 6.79 (s, 1H), 6.68 (d, J = 1.1 Hz, 1H), 6.40 (dd, J = 17.0, 1.9 Hz, 1H), 6.27 (dd, J = 17.0, 10.0 Hz, 1H), 5.91 (dd, J = 9.1, 6.5 Hz, 1H), 5.67 (dd, J = 10.0, 1.9 Hz, 1H), 4.42-4.33 (m, 1H), 4.07-3.96 (m, 1H), 3.82 (s, 3H), 2.93-2.81 (m, 2H), 2.81-2.74 (m, 1H), 2.71 (s, 3H), 2.63-2.50 (m, 1H), 2.35-2.28 (m, 2H), 2.27 (s, 6H),; 572.4 [M + H]⁺ 1.19 629

N-(4-methoxy-2- (4-methylpiperazine- 1-yl)-5-((6-((R)-3- (2,3,6- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.52 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.06 (qd, J = 9.1,4.8 Hz, 1H), 6.88 (s, 1H), 6.87-6.79 (m, 1H), 6.78 (s, 1H), 6.64 (s, 1H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.90 (dd, J = 9.1,6.5 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.41- 4.32 (m, 1H), 4.04-3.94 (m, 1H), 3.82 (s, 3H), 2.97-2.85 (m, 4H), 2.80- 2.72 (m, 1H), 2.71-2.47 (m, 5H), 2.39 (s, 3H),; 570.4 [M + H]⁺ 1.14 630

N-(2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxy-5-((6- ((R)-3-(2,3,6- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.61 (s, 1H), 8.35 (s, 1H), 8.11 (s, 1H), 7.06 (qd, J = 9.1,4.8 Hz, 1H), 6.89- 6.78 (m, 2H), 6.73 (s, 1H), 6.60 (s, 1H), 6.38 (dd, J = 16.9, 1.7 Hz, 1H), 6.28 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 9.0, 6.6 Hz, 1H), 5.73 (dd, J = 10.0, 1.7 Hz, 1H), 4.41-4.32 (m, 1H), 4.03- 3.92 (m, 1H), 3.82 (s, 3H), 3.24-3.17 (m, 1H), 3.17-3.04 (m, 3H), 2.92- 2.81 (m, 1H), 2.81-2.69 (m, 1H), 2.63- 2.49 (m, 1H), 2.29 (s, 6H), 2.24- 2.11 (m, 1H), 1.99-1.85 (m, 1H),; 584.4 [M + H]⁺ 1.11 631

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,6- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.56 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.06 (qd, J = 9.1,4.8 Hz, 1H), 6.90-6.79 (m, 3H), 6.64 (s, 1H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.90 (dd, J = 9.0, 6.6 Hz, 1H), 5.75 (dd, J = 10.0, 1.6 Hz, 1H), 4.42-4.33 (m, 1H), 4.04- 3.94 (m, 1H), 3.81 (s, 3H), 2.99-2.88 (m, 4H), 2.80-2.72 (m, 2H), 2.78- 2.58 (m, 4H), 2.62-2.56 (m, 1H), 2.52 (q, J = 7.2 Hz, 2H), 1.16 (t, J = 7.8, 7.2 Hz, 3H),; 584.3 [M + H]⁺ 1.14 632

N-(4-methoxy-2-(4- morpholinopiperidine-1-yl)-5-((6-((R)- 3-(2,3,6- trifluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.42 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.12-7.00 (m, 1H), 6.89- 6.79 (m, 2H), 6.74 (s, 1H), 6.66-6.61 (m, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.1 Hz, 1H), 5.90 (dd, J = 9.0, 6.6 Hz, 1H), 5.74 (dd, J = 10.1, 1.5 Hz, 1H), 4.41-4.32 (m, 1H), 3.99 (q, J = 8.3 Hz, 1H), 3.83 (s, 3H), 3.78 (t, J = 4.6 Hz, 4H), 3.10-3.03 (m, 2H), 2.80-2.68 (m, 3H), 2.65-2.50 (m, 5H), 2.35-2.24 (m, 1H), 2.13- 2.03 (m, 2H), 1.72-1.64 (m, 2H),; 640.4 [M + H]⁺ 1.15 633

N-(3-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-5-(4- methylpiperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.24 (s, 1H), 7.39 (s, 1H), 7.16 (s, 1H), 7.07 (d, J = 7.1 Hz, 2H), 6.95 (s, 1H), 6.88- 6.80 (m, 1H), 6.56 (s, 1H), 6.49-6.32 (m, 2H), 5.79 (dd, J = 2.1, 9.7 Hz, 1H), 5.61-5.52 (m, 1H), 4.20-4.12 (m, 1H), 3.97 (q, J = 7.9 Hz, 1H), 3.38- 3.34 (m, 4H), 2.98-2.91 (m, 4H), 2.89- 2.82 (m, 1H), 2.60 (s, 3H), 2.39- 2.31 (m, 1H); 522.3[M + H]⁺ 1.19 634

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]hept- ane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(2- chloro-3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.65 (s, 1H), 8.15 (d, J = 6.0 Hz, 2H), 7.45-7.31 (m, 3H), 6.84 (3, 1H), 6.61 (s, 1H), 6.39 (s, 1H), 6.21 (d, J = 16.9 Hz, 1H), 5.86-5.66 (m, 2H), 4.36 (s, 1H), 4.18- 4.11 (m, 1H), 3.88 (q, J = 8.0 Hz, 2H), 3.81 (s, 3H), 3.54 (s, 1H), 3.02 (s, 3H), 2.95- 2.82 (m, 2H), 2.73 (t, J = 10.9 Hz, 3H), 2.10 (d, J = 8.5 Hz, 2H), 1.91 (s, 2H), 1.66 (s, 4H),; 650.4[M + H]⁺ 1.25 635

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]hept- ane-5-yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.64 (s, 1H), 8.15 (d, J = 3.7 Hz, 2H), 7.49 (td, J = 8.6, 6.2 Hz, 1H), 7.31 (td, J = 8.8, 1.7 Hz, 1H), 6.84 (s, 1H), 6.64 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.71 (dd, J = 9.0, 5.2 Hz, 2H), 4.33 (s, 1H), 4.17 (td, J = 7.9, 3.7 Hz, 1H), 3.87 (dd, J = 11.7, 7.8 Hz, 2H), 3.80 (s, 3H), 3.70 (s, 1H), 3.51 (d, J = 7.3 Hz, 1H), 3.03-2.92 (m, 3H), 2.79 (dt, J = 8.1, 3.9 Hz, 1H), 2.75-2.65 (m, 2H), 2.44 (d, J = 10.2 Hz, 1H), 2.34 (d, J = 9.6 Hz, 1H), 2.25-2.15 (m, 1H), 1.87 (s, 2H), 1.72- 1.56 (m, 4H),; 668.4[M + H]⁺ 1.32 636

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.26 (s, 1H), 8.82 (s, 1H), 8.37-8.27 (m, 2H), 7.46 (td, J = 8.4, 6.0 Hz, 1H), 6.95 (td, J = 8.5, 1.8 Hz, 1H), 6.72 (s, 2H), 6.48-6.27 (m, 2H), 5.89-5.82 (m, 1H), 5.77 (dd, J = 9.3, 2.2 Hz, 1H), 4.15 (td, J = 8.0, 4.1 Hz, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.85 (s, 4H), 3.70-3.62 (m, 1H), 3.16 (d, J = 11.7 Hz, 1H), 3.08 (dd, J = 8.9, 6.5 Hz, 1H), 2.90- 2.83 (m, 1H), 2.83-2.71 (m, 1H), 2.34- 2.19 (m, 4H), 2.13 (s, 3H), 2.06 (d, J = 14.5 Hz, 2H), 1.58-1.52 (m, 4H), 1.45 (d, J = 6.6 Hz, 3H),; 697.4[M + H]⁺ 1.31 637

N-(2-(4-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]hept- ane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- chloro-24- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.64 (s, 1H), 8.15 (d, J = 3.8 Hz, 2H), 7.49 (td, J = 8.5, 6.2 Hz, 1H), 7.31 (td, J = 8.8, 1.6 Hz, 1H), 6.84 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.35 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (dd, J = 9.3, 5.4 Hz, 2H), 4.33 (s, 1H), 4.16 (dd, J = 8.0, 3.8 Hz, 1H), 3.92-3.83 (m, 2H), 3.80 (s, 3H), 3.70 (s, 1H), 3.51 (d, J = 7.3 Hz, 1H), 3.02- 2.92 (m, 3H), 2.79 (dt, J = 8.1,4.0 Hz, 1H), 2.71 (t, J = 12.1 Hz, 2H), 2.34 (d, J = 9.5 Hz, 1H), 2.26-2.16 (m, 1H), 1.85 (s, 3H), 1.74-1.56 (m, 4H),; 668.5[M + H]⁺ 1.33 638

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.65 (s, 1H), 8.27-8.06 (m, 2H), 7.49 (td, J = 8.6, 6.2 Hz, 1H), 7.31 (td, J = 8.8, 1.7 Hz, 1H), 6.83 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.38 (d, J = 12.7 Hz, 1H), 6.28-6.15 (m, 1H), 5.72 (ddd, J = 8.7, 5.8, 3.3 Hz, 2H), 4.17 (td, J = 7.9, 3.7 Hz, 1H), 3.93-3.75 (m,4H), 3.15-3.00 (m, 3H), 2.79 (qd, J = 7.5, 3.4 Hz, 1H), 2.72-2.60 (m, 2H), 2.34-2.16 (m, 7H), 1.89-1,60 (m, 4H),; 614.4[M + H]⁺ 1.31 639

N-(5-((6-((R)-3-(3- chloro-2,4-difluorophenyl)- isoxazolidine-2-yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 8.98 (s, 1H), 8.66 (S, 1H), 8.16 (d, J = 6.4 Hz, 1H), 7.49 (td, J = 8.5, 6.2 Hz, 1H), 7.31 (t, J = 8.8 Hz, 1H), 6.83 (s, 1H), 6.68 (ddd, J = 19.1, 16.6, 10.2 Hz, 1H), 6.22-6.03 (m, 2H), 5.81-5.66 (m, 3H), 3.80 (s, 3H), 3.27-3.12 (m, 2H), 3.04 (d, J = 24.7 Hz, 5H), 2.62 (dd, J = 11.1,5.5 Hz, 4H), 2.43 (dd, J = 14.5, 7.1 Hz, 3H), 1.97-1.65 (m, 6H), 1.13-1.01 (m,6H),; 683.4[M + H]* 1.25 640

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hepta ne-5-yl)piperidine-1-yl)- 5-((6-((R)-3-(2-chloro- 3-fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d) δ 9.13 (s, 1H), 8.68 (s, 1H), 8.16 (s, 1H), 7.46- 7.28 (m, 3H), 6.85 (s, 1H), 6.60 (t, J = 13.6 Hz, 1H), 6.42 (s, 1H), 6.24 (ddd, J = 17.0, 11.6, 1.9 Hz, 1H), 5.84- 5.70 (m, 2H), 4.15 (td, J = 7.9, 3.8 Hz, 1H), 3.88 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.72-3.64 (m, 2H), 3.59 (d, J = 6.6 Hz, 5H), 2.89 (dtd, J = 12.4, 8.3, 4.3 Hz, 2H), 2.73 (d, J = 12.2 Hz, 2H), 2.32-1.94 (m, 7H), 1.06 (t, J = 7.0 Hz, 2H),; 650.4[M + H]⁺ 1.23 641

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)- 4-methoxy-5-((6-((R)- 3-(2,3,6- trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.46 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.12-6.99 (m, 1H), 6.87- 6.78 (m, 2H), 6.75 (s, 1H), 6.66- 6.61 (m, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.90 (dd, J = 9.1, 6.5 Hz, 1H), 5.73 (dd, J = 10.1, 1.5 Hz, 1H), 4.44 (t, J = 2.0 Hz, 1H), 4.36 (td, J = 8.1, 2.5 Hz, 1H), 4.11 (dd, J = 12.7, 7.5 Hz, 1H), 4.07-3.94 (m, 1H), 3.83 (s, 3H), 3.79-3.74 (m, 1H), 3.66 (dd, J = 8.0, 1.6 Hz, 1H), 3.13 (dd, J = 10.0, 1.8 Hz, 1H), 3.06-2.98 (m, 2H), 2.83-2.69 (m, 3H), 2.63-2.51 (m, 2H), 2.51- 2.46 (m, 1H), 2.04-2:00 (m, 1H), 1.99-1.86 (m, 2H), 1.86-1.79 (m, 1H), 1.72-1.59 (m, 2H),; 652.5 [M + H]⁺ 1.18 642

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)- 4-methoxy-5-((6-((R)- 3-(2,3,6- trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.46 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.12-6.99 (m, 1H), 6.91- 6.78 (m, 2H), 6.75 (s, 1H), 6.63 (d, J = 1.0 Hz, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.90 (dd, J = 9.1, 6.5 Hz, 1H), 5.72 (dd, J = 10.1, 1.5 Hz, 1H), 4.44(t, J = 2.0 Hz, 1H), 4.36 (td, J = 8.1,2.5 Hz, 1H), 4.10(dd, J = 13.3, 7.5 Hz, 1H), 4.04-3.93 (m, 1H), 3.83 (s, 3H), 3.79-3.74 (m, 1H), 3.66 (dd, J = 8.0, 1.7 Hz, 1H), 3.13 (dd, J = 9.9, 1.8 Hz, 1H), 3.07-2.97 (m, 2H), 2.82-2.69 (m, 3H), 2.63-2.54 (m, 2H), 2.50 (dd, J = 9.9, 1.5 Hz, 1H), 2.08-2.00 (m, 1H), 1.98-1.89 (m, 2H), 1.84-1.80 (m, 1H), 1.72-1.60 (m, 2H),; 652.5 [M + H]⁺ 1.19 643

N-(2-(4-(4- isopropylpiper- azine-1-yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,6- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.12-6.99 (m, 1H), 6.88-6.78 (m, 2H), 6.74 (s, 1H), 6.63 (s, 1H), 6.35 (dd, J = 16.9, 1.6 Hz, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 9.0, 6.5 Hz, 1H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 4.36 (td, J = 8.1,2.5 Hz, 1H), 3.99 (q, J = 8.3 Hz, 1H), 3.82 (s, 3H), 3.05 (d, J = 11.3 Hz, 2H), 2.82-2.49 (m, 13H), 2.37-2.25 (m, 1H), 2.07 (dd, J = 14.4, 10.7 Hz, 2H), 1.73-1.59 (m, 2H), 1.08 (d, J = 6.5 Hz, 6H),; 681.5 [M + H]⁺ 1.16 644

N-(2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(2,3,6- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.41 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.12-6.99 (m, 1H), 6.89 (s, 1H), 6.88- 6.78 (m, 1H), 6.74 (s, 1H), 6.63 (s, 1H), 6.37 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 9.1, 6.6 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.36 (td, J = 8.1,2.5 Hz, 1H), 3.99 (q, J = 8.5 Hz, 1H), 3.83 (s, 3H), 3.77-3.65 (m, 2H), 3.10- 3.02 (m, 2H), 2.88 (d, J = 10.8 Hz, 2H), 2.82- 2.64 (m, 3H), 2.63-2.49 (m, 1H), 2.35- 2.23 (m, 1H), 2.10-2.02 (m, 2H), 1.90 (t, J = 10.6 Hz, 2H), 1.73-1.58 (m, 2H), 1.20 (d, J = 6.3 Hz, 6H),; 668.5 [M + H]⁺ 1.25 645

N-(4-methoxy-2- (4-((S)-2- methylmorpholino)piperidine-1-yl)- 5-((6-((R)-3- (2,3,6- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.42 (s, 1H), 8.36 (d, J = 1.1 Hz, 1H), 7.12-6.99 (m, 1H), 6.88-6.78 (m, 2H), 6.74 (s, 1H), 6.63 (s, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.1 Hz, 1H), 5.90 (dd, J = 9.1,6.6 Hz, 1H), 5.74 (dd, J = 10.1, 1.5 Hz, 1H), 4.41-4.32 (m, 1H), 4.04- 3.86 (m, 2H), 3.83 (s, 3H), 3.76-3.60 (m, 2H), 3.10-3.02 (m, 2H), 2.90 (d, J = 11.3 Hz, 1H), 2.84 (d, J = 11.3 Hz, 1H), 2.81- 2.66 (m, 3H), 2.63-2.50 (m, 1H), 2.35- 2.23 (m, 2H), 2.11-2.02 (m, 2H), 1.97 (t, J = 10.5 Hz, 1H), 1.72-1.60 (m, 2H), 1.19 (d, J = 6.3 Hz, 3H),; 654.5 [M + H]⁺ 1.21 646

N-(4-methoxy-2- (4-((R)-2- methylmorpholino)piperidine-1-yl)- 5-((6-((R)-3- (2,3,6- trifluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.42 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.12-6.99 (m, 1H), 6.89 (s, 1H), 6.88- 6.78 (m, 1H), 6.74 (s, 1H), 6.63 (s, 1H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 9.1,6.6 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.41-4.32 (m, 1H), 4.04-3.86 (m, 2H), 3.83 (s, 3H), 3.74-3.62 (m, 2H), 3.10-3.02 (m, 2H), 2.91 (d, 1H), 2.84 (d, J = 11.2 Hz, 1H), 2.81- 2.65 (m, 3H), 2.63-2.50 (m, 1H), 2.35- 2.24 (m, 2H), 2.11-2.02 (m, 2H), 1.97 (t, J = 10.5 Hz, 1H), 1.73-1.58 (m, 2H), 1.19 (d, J = 6.3 Hz, 3H),; 654.5 [M + H]⁺ 1.22 647

N-(2-(4- (dimethylamino)piperidine-1-yl)- 5-((6-((R)-3-(3- ethynylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.49 (s, 1H), 8.40-8.33 (m, 1H), 7.61 (d, J = 1.8 Hz, 1H), 7.46 (dt, J = 7.6, 1.6 Hz, 1H), 7.37 (dt, J = 7.7, 1.5 Hz, 1H), 7.30 (d, J = 7.7 Hz, 1H), 6.96 (s, 1H), 6.75 (s, 1H), 6.70 (s, 1H), 6.35 (dd, J = 17.1, 1.7 Hz, 1H), 6.25 (dd, J = 17.0, 9.9 Hz, 1H), 5.73 (dd, J = 9.9, 1.7 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 7.9, 4.3 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.09-3.00 (m, 3H), 2.74 (tt, J = 12.3, 7.1 Hz, 4H), 2.36 (s, 6H), 2.34-2.29 (m, 1H), 2.05 (d, J = 12.8 Hz, 2H), 1.64 (td, J = 12.1, 3.7 Hz, 2H),; 568.4[M + H]⁺ 1.18 648

N-(2-(4- ethylpiperazine- 1-yl)-5-((6-((R)- 3-(3- ethynylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.56 (s, 1H), 8.37 (s, 1H), 7.61 (d, J = 1.8 Hz, 1H), 7.46 (dd, J = 7.8,1.6 Hz, 1H), 7.37 (dd, J = 7.6, 1.5 Hz, 1H), 7.32-7.27 (m, 1H), 7.01 (d, J = 3.8 Hz, 1H), 6.81 (s, 1H), 6.70 (s, 1H), 6.36 (dd, J = 16.9, 1.7 Hz, 1H), 6.27 (dd, J = 17.0, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.7 Hz, 1H), 5.68 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J-8.0, 4.3 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.05 (s, 1H), 2.94 (t, J = 5.0 Hz, 4H), 2.79-2.73 (m, 1H), 2.74- 2.54 (m, 4H), 2.52 (q, J = 7.2 Hz, 2H), 2.35 (dtd, J = 12.4, 8.1,4.5 Hz, 1H), 1.15 (t, J = 7.2 Hz, 3H); 554.4[M + H]⁺ 1.17 649

N-(5-((6-((R)-3- (3- ethynylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- (4-methylpiperazine- 1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.46 (s, 1H), 8.36 (s, 1H), 7.61 (d, J = 1.8 Hz, 1H), 7.46 (dt, J = 7.8, 1.6 Hz, 1H), 7.37 (dt, J = 7.8, 1.5 Hz, 1H), 7.31-7.27 (m, 1H), 7.02 (s, 1H), 6.75 (s, 1H), 6.69 (s, 1H), 6.38-6.32 (m, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.75-5.71 (m, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.14 (td, J = 7.9, 4.3 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.05 (d, J = 6.6 Hz, 3H), 2.83-2.59 (m, 7H), 2.51 (s, 4H), 2.36 (d, J = 4.3 Hz, 1H), 2.32 (d, J = 2.5 Hz, 3H), 2.30 (d, J = 6.5 Hz, 1H), 2.08 (d, J = 12.2 Hz, 2H), 1.66 (tt, J = 12.1, 7.2 Hz, 2H); 623.5[M + H]⁺ 1.10 650

N-(5-((6-((R)-3- (3- ethynylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.60 (d, J = 1.8 Hz, 1H), 7.46 (dt, J = 7.8, 1.7 Hz, 1H), 7.37 (dt, J = 7.7, 1.5 Hz, 1H), 7.29 (t, J = 7.7 Hz, 1H), 6.98 (s, 1H), 6.75 (s, 1H), 6.69 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.0, 4.3 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.77 (t, J = 4.6 Hz, 4H), 3.13-2.99 (m, 3H), 2.81-2.67 (m, 3H), 2.66-2.57 (m, 4H), 2.41-2.25 (m, 2H), 2.07 (d, J = 12.5 Hz, 2H), 1.65 (qd, J = 12.0, 3.9 Hz, 2H); 610.5[M + H]⁺ 1.19 651

N-(2-(4-((2S,6R)-2,6- dimethylmorpholino)piperidine-1-yl)-5-((6- ((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.18 (s,1H), 7.94 (s, 1H), 7.46 (s, 1H), 7.39-7.36 (m, 2H), 6.94 (s, 1H), 6.60 (dd, J = 16.9, 10.2 Hz, 1H), 6.40 (dd, J = 16.9, 1.3 Hz, 1H), 5.96 (s, 1H), 5.86-5.80 (m, 1H), 5.52- 5.45 (m, 1H), 4.43 (td, J = 7.6, 4.3 Hz, 1H), 4.18 (dd, J = 15.0, 8.2 Hz, 1H), 4.00 (s, 2H), 3.84 (s, 3H), 3.58 (t, J = 5.8 Hz, 3H), 3.33 (dt, J = 3.2, 1.6 Hz, 5H), 3.08-2.98 (m, 1H), 2.90- 2.75 (m, 4H), 2.45 (dt, J = 13.0, 7.2 Hz, 1H), 2.29 (d, J = 11.2 Hz, 2H), 2.12-2.03 (m, 2H), 1.30 (d, J = 6.3 Hz, 6H); 638.5 [M + H]⁺ 1.19 652

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 7.97 (S, 1H), 7.46 (s, 1H), 7.42-7.33 (m, 3H), 6.93 (s, 1H), 6.59 (dd, J = 16.9, 10.2 Hz, 1H), 6.39 (dd, J = 17.0, 1.1 Hz, 1H), 5.82 (d, J = 11.1 Hz, 1H), 5.50 (d, J = 4.5 Hz, 1H), 4.41 (s, 1H), 4.17(s, 1H), 3.84 (s, 2H), 3.56 (s, 1H), 3.35-3.30 (m, 5H), 3.24 (dd, J = 14.6, 7.4 Hz, 3H), 2.87 (q, J = 11.1 Hz, 2H), 2.44 (s, 1H), 2.17 (d, J = 11.2 Hz, 2H), 2.01 (s, 2H), 1.37 (t, J-7.2 Hz, 3H); 637.5 [M + H]⁺ 1.11 653

N-(2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-5-((6-((R)- 3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.16 (s, 1H), 7.84 (s, 1H), 7.55 (s, 1H), 7.45 (d, J = 7.3 Hz, 1H), 7.37- 7.33 (m, 2H), 6.75 (s, 1H), 6.55 (dd, J = 17.0, 10.2 Hz, 1H), 6.41-6.34 (m, 2H), 5.81 (dd, J = 10.2, 1.2 Hz, 1H), 5.53 (dd, J = 8.5, 4.8 Hz, 1H), 4.15 (td, J = 7.8, 4.3 Hz, 1H), 4.00-3.91 (m, 2H), 3.89 (s, 3H), 3.56-3.39 (m, 4H), 3.33 (dd, J = 3.2, 1.6 Hz, 3H), 3.23 (dd, J = 16.7, 8.0 Hz, 1H), 2.94 (s, 6H), 2.80 (tdd, J = 13.8, 9.0, 5.1 Hz, 1H), 2.47 (dtd, J = 11.6, 7.7, 3.7 Hz, 1H), 2.38-2.28 (m, 1H), 2.21 (dt, J = 14.7, 8.0 Hz, 1H); 554.4 [M + H]⁺ 1.11 654

N-(2-(4- cyclopropylpiperazine- 1-yl)-5-((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.09 (s, 1H), 9.27 (s, 1H), 8.31 (s, 1H), 8.01 (s, 1H), 7.46 (s, 1H), 7.40 (d, J = 1.3 Hz, 3H), 6.84 (d, J = 5.9 Hz, 2H), 6.25 (dd, J = 16.9, 2.0 Hz, 1H), 6.08 (s, 1H), 5.78-5.74 (m, 1H), 5.52 (dd, J = 8.5, 5.5 Hz, 1H), 4.31 (d, J = 4.3 Hz, 1H), 4.26 (s, 1H), 4.05 (d, J = 7.8 Hz, 1H), 3.80 (s, 3H), 3.56 (t, J = 16.1 Hz, 4H), 3.25 (t, J = 7.9 Hz, 4H), 2.92 (td, J = 7.8, 4.2 Hz, 2H), 2.36-2.27 (m, 1H), 1.28-1.19 (m,2H), 0.83 (d, J = 7.0 Hz, 2H),; 566.3[M + H]⁺ 1.19 655

N-(2-(4- (dimethylamino)-[1,4′- bipiperidine]-1′-yl)-5- ((6-((R)-3-(3- ethynylphenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.39 (s, 1H), 9.33 (s, 1H), 8.34 (s, 1H), 7.86 (s, 1H), 7.45 (s, 1H), 7.40 (s, 3H), 6.92 (s, 1H), 6.79 (dd,J = 16.9, 10.2 Hz, 1H), 6.26 (dd, J = 17.0, 1.9 Hz, 1H), 6.07 (s, 1H), 5.76 (dd, J = 8.7, 3.0 Hz, 1H), 5.53 (d, J = 2.9 Hz, 1H), 4.33 (d, J = 4.4 Hz, 1H), 4.25 (s, 1H), 4.08 (d, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.62 (d, J = 11.5 Hz, 2H), 3.53 (s, 1H), 3.37 (s, 1H), 3.25 (d,J = 11.1 Hz, 2H), 3.16 (d, J = 7.5 Hz, 2H), 3.00-2.93 (m, 1H), 2.85 (d, J = 11.9 Hz, 2H), 2.71 (d, J = 4.8 Hz, 6H), 2.35-2.27 (m, 5H), 2.22-2.08 (m, 4H),;651.4[M + H]⁺ 1.04 656

N-(2-(4- (dimethylamino)-[1,4′- bipiperidine]-1′-yl)-4- methoxy-5-((6-((R)-3- (2,3,4- trifluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.22 (s, 1H), 9.27 (s, 1H), 8.34 (s, 1H), 7.89 (s, 1H), 7.32 (ddd, J = 9.6, 7.2, 1.9 Hz, 1H), 7.24 (t, J = 6.8 Hz, 1H), 6.92 (s, 1H), 6.79-6.72 (m, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.18 (s, 1H), 5.76 (dd, J = 10.1, 2.0 Hz, 1H), 5.70 (dd, J = 8.6, 5.6 Hz, 1H), 4.32 (dd, J = 7.7, 4.0 Hz, 1H), 4.06 (d, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.62 (d, J = 11.7 Hz, 2H), 3.51 (s, 1H), 3.36 (s, 1H), 3.24 (d, J = 11.2 Hz, 2H), 3.17-3.09 (m, 2H), 2.96 (d, J = 3.8 Hz, 1H), 2.85-2.78 (m, 2H), 2.71 (d, J = 4.8 Hz, 6H), 2.35-2.28 (m, 5H), 2.17 (s, 2H), 2.09 (d, J = 11.6 Hz, 2H),;681.3[M + H]⁺ 1.12 657

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-((S)-2- methylmorpholino)phenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 9.11 (s, 1H), 8.24 (d, J = 4.1 Hz, 1H), 8.05 (s, 1H), 7.45 (q, J = 7.8 Hz, 1H), 7.32 (td, J = 8.8, 1.7 Hz, 1H), 6.89 (s, 1H), 6.63 (dd, J = 16.9, 10.2 Hz, 1H), 6.29- 6.17 (m, 2H), 5.71 (ddd, J = 14.9, 9.4, 3.6 Hz, 2H), 4.24 (dd, J = 7.9, 4.2 Hz, 1H), 3.96 (d, J = 8.2 Hz, 1H), 3.90-3.73 (m, 6H), 2.96-2.74 (m, 4H), 2.57-2.51 (m, 2H), 2.26 (dd, J = 12.7, 6.1 Hz, 1H), 1.11 (d, = 6.3 Hz, 3H),; 587.3[M + H]⁺ 1.68 658

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2S,6S)- 2,6- dimethylmorpholino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.24 (s, 1H), 7.91 (s, 1H), 7.45 (td, J = 8.5, 6.1 Hz, 1H), 7.32 (td, J = 8.8, 1.6 Hz, 1H), 6.86 (s, 1H), 6.51 (dd, J = 17.0, 10.2 Hz, 1H), 6.31- 6.13 (m, 2H), 5.72 (ddd, J = 20.1, 9.4, 3.7 Hz, 2H), 4.25 (td, J = 7.8, 3.8 Hz, 1H), 4.06 (tt, J = 9.7, 4.7 Hz, 2H), 3.96 (dp, J = 8.1,4.4, 3.9 Hz, 1H), 3.82 (s, 3H), 2.85 (dt, J = 11.5, 5.6 Hz, 4H), 2.64 (dd, J = 11.4, 5.7 Hz, 2H), 2.34-2.18 (m, 1H), 1.26 (d, J = 6.4 Hz, 6H),;601.4[M + H]⁺ 1.72 659

N-(4-methoxy-2-((S)- 2-methylmorpholino)- 5-((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.12 (s, 1H), 8.25 (d, J = 3.7 Hz, 1H), 8.02 (S, 1H), 7.97-7.85 (m, 4H), 7.52 (td, J = 6.3, 5.7, 3.4 Hz, 3H), 6.87 (s, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.28- 6.13 (m, 2H), 5.71 (ddd, J = 27.0, 9.4, 3.7 Hz, 2H), 4.32 (td, J = 7.6, 4.0 Hz, 1H), 4.04 (d, J = 7.9 Hz, 1H), 3.85 (td, J = 8.9, 8.1,3.2 Hz, 2H), 3.79 (s, 4H), 3.00-2.72 (m, 4H), 2.60-2.51 (m, 2H), 2.39 (dq, J = 8.6, 5.1, 3.8 Hz, 1H), 1.12 (d, J = 6.3 Hz, 3H),; 567.4[M + H]⁺ 1.56 660

N-(2-((2S,6S)-2,6- dimethylmorpholino)- 4-methoxy-5-((6-((R)- 3-(naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.25 (s, 1H), 7.91 (dd, J = 15.3, 7.8 Hz, 5H), 7.52 (ddt, J = 10.7, 6.9, 3.4 Hz, 3H), 6.85 (d, J = 2.6 Hz, 1H), 6.51 (dd, J = 17.0, 10.2 Hz, 1H), 6.30-6.13 (m, 2H), 5.71 (ddd, J = 29.8, 9.4, 3.8 Hz, 2H), 4.37-4.25 (m, 1H), 4.12-3.95 (m, 4H), 3.79 (d, J = 2.8 Hz, 3H), 2.94 (d, J = 9.5 Hz, 1H), 2.84 (dd, J = 11.6, 3.1 Hz, 2H), 2.64 (dd, J = 11.4, 5.6 Hz, 2H), 2.39 (dt, J = 13.0, 3.7 Hz, 1H), 1.27 (d, J = 6.4 Hz, 6H),; 581.5[M + H]⁺ 1.59 661

N-(5-((6-((R)-3-(2- chloro-3- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.15 (d, J = 1.1 Hz, 1H), 7.43 (d, J = 7.9 Hz, 1H), 7.30 (td, J = 8.1, 5.3 Hz, 1H), 7.20- 7.10(m, 1H), 6.84-6.70 (m, 1H), 6.54 (dd, J = 17.0, 10.3 Hz, 1H), 6.43- 6.34 (m, 2H), 5.91-5.82 (m, 2H), 5.60 (ddd, J = 8.0, 5.6, 2.6 Hz, 1H), 4.12 (td, J = 8.0, 4.2 Hz, 1H), 3.85 (d, J = 12.7 Hz, 6H), 3.68 (s, 2H), 3.37 (dq, J = 6.4, 3.5 Hz, 2H), 3.17-3.11 (m, 4H), 2.99- 2.93 (m, 4H), 2.57 (dt, J = 11.1, 7.3 Hz, 3H), 2.07-2.00 (m, 2H), 1.99-1.90 (m,2H), 1.26 (d, J = 6.5 Hz, 6H),; 679.5[M + H]⁺ 1.20 662

N-(2-((S)-3,4- dimethylpiperazine- 1-yl)-4-methoxy-5- ((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.02 (s, 1H), 8.64 (s, 1H), 8.18 (s, 1H), 7.95- 7.85 (m, 4H), 7.57 (dd, J = 8.6, 1.7 Hz, 1H), 7.54-7.45 (m, 2H), 6.86 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.43 (s, 1H), 6.23 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (ddd, J = 15.8, 9.3, 3.6 Hz, 2H), 4.20 (td, J = 7.8, 3.7 Hz, 1H), 3.86 (d, J = 24.8 Hz, 4H), 3.17 (s, 4H), 3.04 (s, 4H), 2.84 (dtd, J = 11.9, 7.9, 3.6 Hz, 2H), 2.41-2.29 (m, 1H), 1.91 (s, 2H), 1.21 (d, J = 20.2 Hz, 3H),; 580.5[M + H]⁺ 1.23 663

N-(4-methoxy-2- ((R)-2- methylmorpholino)- 5-((6-((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.61 (s, 1H), 8.19 (d,J = 11.6 Hz, 2H), 7.96-7.85 (m, 4H), 7.57 (dd, J = 8.6, 1.7 Hz, 1H), 7.49 (ddt, J = 9.6, 7.1, 3.5 Hz, 2H), 6.86 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.41 (s, 1H), 6.21 (dd, J = 16.9, 2.0 Hz, 1H), 5.71 (td, J = 8.9, 8.1, 3.4 Hz, 2H), 4.19 (td, J = 7.9, 3.8 Hz, 1H), 3.98-3.72 (m, 7H), 2.94-2.74 (m, 4H), 2.34 (dtd, J = 12.9, 8.2, 5.0 Hz, 1H), 1.91 (s, 1H), 1.11 (d, J = 6.3 Hz, 3H),; 567.4[M + H]⁺ 1.54 664

N-(2-((2S,6R)-2,6- dimethylmorpholino)- 4-methoxy-5-((6- ((R)-3- (naphthalene-2- yl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.06 (s, 1H), 8.61 (s, 1H), 8.27-8.10 (m, 2H), 7.97-7.85 (m, 4H), 7.57 (dd, J = 8.6, 1.7 Hz, 1H), 7.54-7.44 (m, 2H), 6.86 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.40 (s, 1H), 6.21 (dd, J = 16.9, 2.0 Hz, 1H), 5.80-5.63 (m, 2H), 4.19 (td, = 7.8, 3.8 Hz, 1H), 3.90-3.80 (m, 5H), 2.94-2.77 (m, 3H), 2.48- 2.27 (m, 3H), 1.86 (s, 1H), 1.10 (d, J = 6.2 Hz, 6H),; 581.4[M + H]⁺ 1.60 665

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)-3,4- dimethylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.82 (s, 1H), 8.27 (s, 1H), 8.19 (s, 1H), 7.48 (q, J = 7.9 Hz, 1H), 7.31 (t, J = 8.8 Hz, 1H), 6.85 (s, 1H), 6.63 (dd, J = 16.9, 10.3 Hz, 1H), 6.40 (s, 1H), 6.24 (d, J = 16.9 Hz, 1H), 5.79-5.66 (m, 2H), 4.19 (dd, J = 8.0, 3.7 Hz, 1H), 3.90 (t, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.57 (d, J = 12.0 Hz, 1H), 3.47 (s, 1H), 3.38 (q, J = 7.8, 7.3 Hz, 1H), 3.26- 3.15 (m, 2H), 3.02 (t, J = 11.9 Hz, 1H), 2.90 (d, J = 4.2 Hz, 3H), 2.83 (q, J = 9.8, 9.4 Hz, 2H), 2.23 (dq, J = 13.4, 7.7 Hz, 1H), 1.32 (d, J = 6.5 Hz, 3H),; 600.4[M + H]⁺ 1.35 666

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-((R)-2- methylmorpholino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.80 (s, 1H), 8.17 (d, J = 14.1 Hz, 2H), 7.48 (q, J = 8.0 Hz, 1H), 7.31 (t, J = 8.8 Hz, 1H), 6.87 (s, 1H), 6.62 (dd, J = 17.1, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (d, J = 17.3 Hz, 1H), 5.71 (t, J = 9.4 Hz, 2H), 4.19 (td, J = 8.0, 3.6 Hz, 1H), 3.92- 3.75 (m, 8H), 2.92-2.76 (m, 4H), 2.27-2.16(m, 1H), 1.11 (d, J = 6.2 Hz, 3H),; 587.4[M + H]⁺ 1.70 667

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2S,6R)- 2,6- dimethylmorpholino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.66 (s, 1H), 8.18 (d, J = 7.0 Hz, 2H), 7.49 (td, J = 8.6, 6.2 Hz, 1H), 7.31 (td, J = 8.8, 1.7 Hz, 1H), 6.85 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.38 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.71 (dt, J = 8.4, 4.2 Hz, 2H), 4.17 (td, J = 8.0, 3.7 Hz, 1H), 3.87 (q, J = 6.8, 5.0 Hz, 3H), 3.81 (s, 3H), 2.87 (d, J = 11.2 Hz, 2H), 2.79 (qd, J = 8.2, 3.9 Hz, 1H), 2.42 (td, J = 10.7, 4.8 Hz, 2H), 2.20 (tt, J = 8.2, 4.9 Hz, 1H), 1.10 (d, J = 6.3 Hz, 6H),;601.4[M + H]⁺ 1.77 668

N-(5-((6-((R)-3-(3- chloro-2,4- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.66 (s, 1H), 8.16 (d, J = 3.7 Hz, 2H), 7.49 (td, J = 8.5, 6.2 Hz, 1H), 7.31 (t, J = 8.8 Hz, 1H), 6.82 (s, 1H), 6.64(dd, J = 16.9, 10.3 Hz, 1H), 6.38 (s, 1H), 6.22 (d, J = 17.0 Hz, 1H), 5.72 (td, J = 10.6, 8.7, 6.1 Hz, 2H), 4.17 (q,J = 7.1,6.4 Hz, 1H), 3.86 (q, J = 8.0 Hz, 2H), 3.80 (s, 3H), 3.42-3.35 (m,.2H), 3.14 (d, J = 25.2 Hz, 5H), 2.86-2.64 (m, 11H), 2.22 (dt, J = 9.3, 6.7 Hz, 2H), 1.75 (s, 5H),; 697.5[M + H]⁺ 1.23 669

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 12.67-12.39 (m, 1H), 9.46 (s, 1H), 8.89 (d, J = 12.7 Hz, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.59 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.93 (s, 1H), 6.78 (s, 1H), 6.71 (s, 1H), 6.41 (d, J = 16.8 Hz, 1H), 5.71 (d, J = 10.2 Hz, 1H), 5.65 (dd, J = 8.6, 4.6 Hz, 1H), 4.17 (dd, J = 8.0, 4.2 Hz, 1H), 4.10 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.36-3.23 (m, 2H), 3.12 (s, 2H), 2.79 (dt, J = 8.2, 3.9 Hz, 4H), 2.74 (s, 3H), 2.33 (dtd, J = 12.6, 8.2, 4.6 Hz, 4H),; 586.3 [M + H]⁺ 1.35 670

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.37 (s, 1H), 8.33 (s, 1H), 7.57 (d,J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.3, 2.1 Hz, 1H), 7.04-6.98 (m, 1H), 6.81 (s, 1H), 6.69 (s, 1H), 6.43- 6.32 (m, 2H), 5.76 (dd, J = 9.6, 1.9 Hz, 1H), 5.64 (dd, J = 8.7, 4.7 Hz, 1H), 4.22-4.13 (m, 2H), 4.04 (q, J = 8.0 Hz, 2H), 3.87 (s, 3H), 3.70- 3.60 (m, 4H), 3.13-3.02 (m, 5H), 2.33 (dt, J = 8.5, 4.5 Hz, 2H),; 584.3 [M + H]⁺ 1.31 671

N-(2-((1R,4R)-2-oxa- 5-azabicyclo[2.2.1]hep- tane-5-yl)-5-((6-((R)-3- (3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.64 (s, 1H), 8.35 (s, 1H), 7.96 (s, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.3, 2.1 Hz, 1H), 6.89 (s, 1H), 6.71 (d, J = 13.5 Hz, 2H), 6.38 (d, J = 16.8 Hz, 1H), 6.28 (dd,J = 16.9, 9.9 Hz, 1H), 5.79-5.74 (m, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.67-4.62 (m, 1H), 4.21-4.13 (m, 1H), 4.08- 4.02 (m, 2H), 3.88-3.85 (m, 4H), 3.75 (d, J = 7.9 Hz, 1H), 3.45 (d, J = 10.2 Hz, 1H), 3.20 (d, J = 10.1 Hz, 1H), 2.77 (ddt, J = 12.1,8.1,4.0 Hz, 1H), 2.33 (ddt, J = 11.8, 7.9, 4.0 Hz, 1H), 2.09 (d, J = 9.9 Hz, 1H), 2.00 (d, J = 9.9 Hz, 1H),; 583.3 [M + H]⁺ 1.44 672

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.45 (s, 1H), 8.37 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 10.2 Hz, 1H), 6.98 (s, 1H), 6.83 (s, 1H), 6.70 (s, 1H), 6.38 (d, J = 16.5 Hz, 1H), 6.32- 6.21 (m, 1H), 5.76 (d, J = 10.0 Hz, 1H), 5.68-5.61 (m, 1H), 4.20- 4.13 (m, 1H), 4.09-4.01 (m, 1H), 3.85 (s, 3H), 3.70-3.62 (m, 1H), 3.37-3.29 (m, 1H), 3.14-3.03 (m, 3H), 2.85-2.67 (m, 4H), 2.42- 2.25 (m, 2H), 1.54 (t, 2H), 1.45 (d, J = 6.5 Hz, 2H),; 598.3 [M + H]⁺ 1.32 673

N-(2-(4- cyclopropylpiperazine- 1-yl)-5-((6-((R)-3- (3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chioroform-d) δ 8.90 (s, 1H), 8.60 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 10.3 Hz, 1H), 6.92 (s, 1H), 6.79 (s, 1H), 6.72 (s, 1H), 6.40-6.33 (m, 1H), 6.32- 6.24 (m, 1H), 5.76 (d, J = 9.8 Hz, 1H), 5.67-5.63 (m, 1H), 4.19- 4.13 (m, 1H), 4.11-4.03 (m, 1H), 3.81 (s, 3H), 2.93-2.86 (m, 4H), 2.84-2.73 (m, 3H), 2.37-2.27 (m, 2H), 1.77-1.68 (m, 2H), 0.52 (d, J = 6.5 Hz, 2H), 0.47 (d, J = 3.3 Hz, 2H),; 610.4 [M + H]⁺ 1.47 674

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-((1R,4R)-5-methyl-2,5-diazabicyclo[2.2.1]hept- ane-2- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.68 (s, 1H), 8.34 (s, 1H), 8.13 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.4 Hz, 1H), 6.96 (s, 1H), 6.85 (s, 1H), 6.62 (s, 1H), 6.30 (d, J = 15.4 Hz, 1H), 6.21- 6.13 (m, 1H), 5.77-5.70 (m, 1H), 5.66-5.60 (m, 1H), 4.18-4.10 (m, 2H), 4.05-3.97 (m, 2H), 3.89 (s, 3H), 3.82 (s, 2H), 3.61 (s, 2H), 3.20- 3.12(m, 1H), 2.80-2.73 (m, 1H), 2.70 (s, 3H), 2.38-2.27 (m, 1H), 2.13 (s, 1H),; 596.3 [M + H]⁺ 1.25 675

N-(2-(4- acetylpiperazine-1- yl)-5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.94 (s, 1H), 8.44 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.58 (d, J = 2.0 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.97 (s, 1H), 6.72 (s, 2H), 6.38 (d, J = 16.9 Hz, 1H), 6.26 (dd, J = 16.9, 10.1 Hz, 1H), 5.77 (dd, J = 10.0, 1.5 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.17 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.65 (s, 2H), 2.88 (d, J = 5.3 Hz, 4H), 2.78 (ddt, J = 12.1, 8.0, 4.0 Hz, 1H), 2.34 (ddd, J = 12.4, 8.3, 4.6 Hz, 1H), 2.17 (s, 3H), 1.25 (s, 2H),; 612.3[M + H] 1.51 676

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((1R,4R)-5-ethyl-2,5- diazabicyclo[2.2.1]h eptane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.59 (s, 1H), 8.33 (s, 1H), 8.12 (s, 1H), 7.58 (d, J = 2.0 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.3, 2.2 Hz, 1H), 6.90 (s, 1H), 6.76 (s, 1H), 6.67 (s, 1H), 6.40 (s, 1H), 6.25-6.18 (m, 1H), 5.75-5.70 (m, 1H), 5.64 (dd, J = 8.4, 5.2 Hz, 1H), 4.19-4.12 (m, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.37-3.23 (m, 2H), 3.08 (d, J = 10.1 Hz, 1H), 2.94 (s, 2H), 2.82-2.69 (m, 4H), 2.33-2.26 (m, 2H), 2.03 (s, 3H), 1.82 (dt, J = 23.4, 7.2 Hz, 1H),; 610.3[M + H] 1.27 677

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.42 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.96 (s, 1H), 6.73 (d, J = 13.2 Hz, 2H), 6.41- 6.33 (m, 1H), 6.28 (dd, J = 17.0, 9.7 Hz, 1H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.16 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.34-3.27 (m, 1H), 3.10 (d, J = 11.7 Hz, 2H), 2.75 (q, J = 11.5 Hz, 4H), 2.51 (s, 6H), 2.37-2.30 (m, 2H), 2.14 (d, J = 12.5 Hz, 2H),; 612.4[M + H] 1.32 678

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((1S,4S)-5-ethyl-2,5- diazabicyclo[2.2.1]h eptane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.36 (s, 1H), 8.66 (s, 1H), 8.35 (s, 1H), 8.03 (s, 1H), 7.58 (d,J = 2.0 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.2, 2.1 Hz, 1H), 6.88 (s, 1H), 6.63 (s, 1H), 6.40 (q, J = 7.6, 6.2 Hz, 2H), 5.75 (d, J = 11.3 Hz, 1H), 5.64 (dd, J = 8.7, 4.6 Hz, 1H), 4.14 (td, J = 7.9, 4.1 Hz, 1H), 4.02 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.39-3.27 (m, 1H), 3.13 (d, J = 10.2 Hz, 1H), 2.76 (dtd, J = 12.2, 8.1,4.2 Hz, 2H), 2.38-2.28 (m, 2H), 2.04 (s, 2H), 1.83 (dd, J = 18.7, 11.5 Hz, 2H), 1.48 (d, J = 24.4 Hz, 2H), 1.26 (d, 7 = 6.0 Hz, 3H),; 610.3[M + H] 1.28 679

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((2- methoxyethyl)(methyl- )amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.14 (s, 1H), 8.98 (s, 1H), 8.36 (d, J = 1.1 Hz, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.40 (d, 7 = 8.3 Hz, 1H), 7.30 (dd, 7 = 8.4, 2.1 Hz, 1H), 6.92 (s, 1H), 6.81-6.71 (m, 2H), 6.40 (dd, 7 = 17.0, 2.0 Hz, 1H), 6.30 (dd, 7 = 17.0, 9.8 Hz, 1H), 5.67 (ddd, 7 = 18.7, 9.3, 3.3 Hz, 2H), 4.19-4.04 (m, 2H), 3.84 (s, 3H), 3.45 (d, 7 = 15.5 Hz, 5H), 2.97 (dt, 7 = 7.4, 3.2 Hz, 2H), 2.75 (s, 4H), 2.32 (dtd, 7 = 12.4, 8.1,4.6 Hz, 1H),; 573.3[M + H] 1.69 680

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- isopropylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) 3 8.92 (s, 1H), 8.55 (s, 1H), 8.37 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 10.1 Hz, 1H), 6.96 (s, 1H), 6.85 (s, 1H), 6.71 (s, 1H), 6.38 (d, J = 17.1 Hz, 1H), 6.33- 6.26 (m, 1H), 5.76 (d, J = 11.2 Hz, 1H), 5.69-5.62 (m, 1H), 4.19- 4.11 (m,2H), 4.10-4.01 (m, 2H), 3.84 (s, 3H), 3.72-3.61 (m, 1H), 3.37-3.27 (m, 2H), 3.12-3.05 (m, 1H), 2.96 (s, 5H), 2.82-2.73 (m, 3H), 2.62 (s, 1H), 2.38-2.28 (m, 2H),; 612.4 [M + H]⁺ 1.47 681

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.40 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.3 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.71 (s, 1H), 6.36 (d, J = 16.9 Hz, 1H), 6.29-6.25 (m, 1H), 5.74 (d, J = 10.0 Hz, 1H), 5.67-5.62 (m, 1H), 4.18-4.12 (m, 1H), 4.10- 4.03 (m, 1H), 3.84 (s, 3H), 3.40-3.27 (m, 2H), 3.22-3.15 (m, 1H), 3.11- 3.02 (m, 2H), 2.80-2.65 (m, 6H), 2.59-2.49 (m, 3H), 2.38-2.29 (m, 6H), 2.08 (d, J = 14.7 Hz, 2H),; 667.4 [M + H]⁺ 1.25 682

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.35 (s, 1H), 8.57 (s, 1H), 8.33 (s, 1H), 7.58 (s, 1H), 7.40 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 7.5 Hz, 1H), 6.86 (s, 1H), 6.68 (d, J = 6.6 Hz, 2H), 6.40 (d, J = 16.7 Hz, 2H), 5.74 (s, 1H), 5.67- 5.61 (m, 1H), 4.21-4.13 (m, 1H), 4.05 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.70-3.60 (m, 1H), 3.37-3.27 (m, 1H), 3.13-2.98 (m, 3H), 2.82-2.70 (m, 2H), 2.63 (s, 6H), 2.37-2.24 (m, 2H),; 598.4 [M + Hf 1.27 683

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.29 (d, J = 1.7 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.71 (s, 1H), 6.36 (d, J = 15.9 Hz, 1H), 6.29-6.20 (m, 1H), 5.74 (d, J = 10.1 Hz, 1H), 5.68-5.61 (m, 1H), 4.19-4.12 (m, 1H), 4.11- 4.03 (m, 1H), 3.85 (s, 3H), 3.79-3.75 (m, 4H), 3.36-3.28 (m, 1H), 3.22- 3.16 (m, 1H), 3.12-3.04 (m,2H), 2.75 (t, J = 11.0 Hz, 3H), 2.62 (s, 4H), 2.37-2.25 (m, 3H), 2.08 (d, J = 13.9 Hz, 2H),; 654.4 [M + H]⁺ 1.33 684

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((,1S,4S)- 5-methyl-2,5- diazabicyclo[2.2.1]h eptane-2- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.67 (s, 1H), 8.35 (s, 1H), 8.10 (s, 1H), 7.58 (d, J = 2.0 Hz, 1H), 7.41 (d, j = 8.3 Hz, 1H), 7.33-7.28 (m, 1H), 6.93 (s, 1H), 6.86 (s, 1H), 6.62 (s, 1H), 6.42 (d, J = 10.1 Hz, 2H), 5.77-5.72 (m, 1H), 5.64 (dd, J = 8.7, 4.7 Hz, 1H), 4.14 (td, J = 7.8, 4.0 Hz, 1H), 4.01 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.77 (s, 1H), 3.67-3.59 (m, 1H), 3.33-3.27 (m, 1H), 3.21-3.13 (m, 2H), 3.06 (s, 1H), 2.92-2.85 (m, 1H), 2.76 (dt, J = 8.4, 4.3 Hz, 2H), 2.68 (s, 3H), 2.33 (dt, J = 12.4, 4.0 Hz, 1H); , 596.3[M + H] 1.26 685

N-(5-((6-((R)-3-(3,4- dichlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.56 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.58 (d, J = 2.1 Hz, 1H), 7.40 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.5, 2.1 Hz, 1H), 6.93 (s, 1H), 6.82 (s, 1H), 6.72 (s, 1H), 6.41-6.32 (m, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.15 (td, J = 8.1, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 2.95-2.88 (m, 4H), 2.79- 2.69 (m, 4H), 2.31 (d, J = 14.6 Hz, 4H), 1.99 (t, J = 11.7 Hz, 2H), 1.86 (d, J = 12.6 Hz, 2H), 1.66 (s, 4H), 1.25 (s, 2H),; 667.4[M + H] 1.15 686

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(2- (dimethylamino)ethyl) piperazine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.56 (s, 1H), 8.39-8.29 (m, 1H), 7.57 (d, J = 5.8 Hz, 1H), 7.45-7.37 (m, 1H), 7.30 (d, J = 7.1 Hz, 1H), 7.07-6.92 (m, 2H), 6.83- 6.70 (m, 1H), 6.53 (d, J = 9.1 Hz, 1H), 6.37 (d, J = 17.0 Hz, 1H), 5.75 (d, J = 10.5 Hz, 1H), 5.64 (dd, J = 12.9, 7.8 Hz, 1H), 4.15 (s, 1H), 4.06 (d, J = 8.2 Hz, 1H), 3.84 (s, 3H), 3.43 (s, 2H), 3.33 (d, J = 6.4 Hz, 4H), 3.28 (s, 3H), 3.21 (d, J = 1.8 Hz, 2H), 2.95 (d, J = 7.0 Hz, 2H), 2.68 (s, 3H),; 641.4[M + H] 1.26 687

N-(2-(4- (cyclopropylmethyl)pip- erazine-1-yl)-5-((6- ((R)-3-(3,4- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.58 (s, 1H), 8.36 (d, J = 1.0 Hz, J), 7.58 (d, J = 2.1 Hz, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (dd, J = 8.4, 2.1 Hz, 1H), 6.94 (s, 1H), 6.83 (s, 1H), 6.72 (s, 1H), 6.40-6.32 (m, 1H), 6.26 (dd, J = 16.9, 10.1 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 5.65 (dd, J = 8.7, 4.6 Hz, 1H), 4.16 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 2.95 (t, J = 4.7 Hz, 4H), 2.76 (ddt, J = 12.3, 8.1,4.2 Hz, 2H), 2.36 (d, J = 6.7 Hz, 2H), 2.30 (ddd, J = 13.7, 8.8, 5.0 Hz, 1H), 1.60 (s, 4H), 0.61-0.53 (m, 2H), 0.16 (q, J = 5.1 Hz, 2H),; 624.4[M + H] 1.37 688

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hepta ne-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 11.35 (s, 1H), 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.4 Hz, 1H), 6.93 (s, 1H), 6.75-6.70 (m, 1H), 6.43-6.32 (m, 2H), 5.82-5.73 (m, 1H), 5.69-5.63 (m, 1H), 4.20- 4.13 (m,2H), 4.10-4.03 (m, 1H), 3.85 (s, 3H), 3.70-3.61 (m, 2H), 3.52-3.45 (m, 1H), 3.34-3.28 (m, 1H), 3.13-3.05 (m, 3H), 2.82-2.70 (m, 4H), 2.38-2.27 (m, 2H), 2.11- 1.96 (m, 3H), 1.24-1.17 (m, 2H),; 666.4 [M + H]⁺ 1.30 689

N-(5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.43 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.40 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.5 Hz, 1H), 6.92 (s, 1H), 6.74 (s, 1H), 6.71 (s, 1H), 6.36 (d, J = 17.4 Hz, 1H), 6.28-6.24 (m, 1H), 5.74 (d, J = 11.0 Hz, 1H), 5.68- 5.62 (m, 1H), 4.19-4.12 (m, 2H), 4.10-4.02 (m, 2H), 3.84 (s, 3H), 3.35-3.26 (m, 1H), 3.06 (d, J = 14.2 Hz, 3H), 2.82-2.57 (m, 9H), 2.37- 2.28 (m, 2H), 2.13-2.02 (m, 3H), 1.09 (s, 6H),; 695.5 [M + H]⁺ 1.29 690

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hepta ne-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3,4- dichlorophenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.4 Hz, 1H), 6.93 (s, 1H), 6.73 (s, 2H), 6.37 (s, 2H), 5.79- 5.74 (m, 1H), 5.69-5.61 (m, 1H), 4.20-4.11 (m, 2H), 4.11-4.03 (m, 2H), 3.93-3.88 (m, 1H), 3.85 (s, 3H), 3.45-3.39 (m, 1H), 3.37-3.29 (m, 1H), 3.09 (s, 2H), 2.83-2.70 (m, 4H), 2.38-2.27 (m, 2H), 2.10-1.95 (m, 3H), 1.55 (d, J = 11.7 Hz, 2H), 1.45 (d, J = 6.6 Hz, 1H),; 666.4 [M + H]⁺ 1.32 691

N-(5-((6-((R)-3-(2- chloro-3,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- cyclopropylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.58 (s, 1H), 8.34 (d, J = 1.0 Hz, 1H), 7.10-7.01 (m, 1H), 7.01-6.92 (m, 1H), 6.87 (s, 1H), 6.78 (s, 1H), 6.62 (s, 1H), 6.37 (dd, J = 16.9, 1.7 Hz, 1H), 6.28 (dd, J = 17.0, 9.8 Hz, 1H), 5.93 (t, J = 8.3 Hz, 1H), 5.75 (dd, J = 9.8, 1.8 Hz, 1H), 4.38 (td, J = 8.0, 1.9 Hz, 1H), 4.02-3.91 (m, 1H), 3.79 (s, 3H), 2.89-2.74 (m, 9H), 2.61-2.47 (m, 1H), 1.77-1.67 (m, 1H), 0.57-0.42 (m, 4H),; 612.4 [M + H]⁺ 1.18 692

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]h eptane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(2- chloro-3,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.83 (s, 1H), 8.46 (s, 1H), 8.33 (d, J = 1.1 Hz, 1H), 7.10-7.01 (m, 1H), 7.01-6.92 (m, 1H), 6.85 (s, 1H), 6.75 (s, 1H), 6.65- 6.60 (m, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.1 Hz, 1H), 5.93 (t, J = 8.3 Hz, 1H), 5.72 (dd, J = 10.0, 1.5 Hz, 1H), 4.44 (t, J = 2.0 Hz, 1H), 4.37 (td, J = 8.0, 1.9 Hz, 1H), 4.09 (d, J = 7.9 Hz, 1H), 3.97 (td, J = 9.0, 8.6, 6.0 Hz, 1H), 3.83 (s, 3H), 3.77 (d, J = 2.2 Hz, 1H), 3.66 (dd, J = 8.0, 1.6 Hz, 1H), 3.14 (dd, J = 9.9, 1.8 Hz, 1H), 3.06-2.97 (m, 2H), 2.83-2.75 (m, 2H), 2.73 (dd, J = 12.0, 2.5 Hz, 1H), 2.62-2.46 (m, 3H), 2.04 (d,J = 13.0 Hz, 1H), 1.99-1.88 (m, 2H), 1.86-1.79 (m, 1H), 1.73-1.60 (m, 2H),; 668.4 [M + H]⁺ 1.17 693

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]h eptane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(2- chloro-3,6- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.46 (s, 1H), 8.33 (d, J = 1.0 Hz, 1H), 7.10-7.00 (m, 1H), 7.00-6.92 (m, 1H), 6.84 (s, 1H), 6.75 (s, 1H), 6.66- 6.60 (m, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (t, J = 8.3 Hz, 1H), 5.72 (dd, J = 10.0, 1.5 Hz, 1H), 4.44(t, J = 2.1 Hz, 1H), 4.37 (td, J = 8.0, 1.8 Hz, 1H), 4.09 (d, J = 7.9 Hz, 1H), 4.01-3.86 (m, 1H), 3.83 (s, 3H), 3.76 (s, 1H), 3.66 (dd, J = 8.0, 1.6 Hz, 1H), 3.14 (dd, J = 9.9, 1.8 Hz, 1H), 3.06-2.98 (m, 2H), 2.83-2.69 (m, 3H), 2.62-2.52 (m, 2H), 2.50 (d, J = 10.2 Hz, 1H), 2.04 (d, J = 12.9 Hz, 1H), 1.99- 1.88 (m, 2H), 1.82 (d, J = 10.9 Hz, 1H), 1.72-1.60 (m, 2H),; 668.4 [M + H]⁺ 1.16 694

N-(5-((6-((R)-3-(4- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.38 (s, 1H), 8.18 (s, 1H), 7.45-7.31 (m, 4H), 6.95 (s, 1H), 6.49-6.33 (m, 2H), 5.82 (d, J = 10.9 Hz, 1H), 5.54-5.49 (m, 1H), 4.14 (td, J = 7.7, 4.5 Hz, 1H), 4.00-3.94 (m, 1H), 3.89 (s, 3H), 3.33 (dd, J = 3.2, 1.6 Hz, 2H), 3.25-3.18 (m, 4H), 3.15 (d, J = 13.0 Hz, 5H), 2.84 (s, 1H), 2.76 (d, J = 14.0 Hz, 3H); 550.5 [M + H]⁺ 1.41 695

N-(5-((6-((R)-3-(4- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrolidine-1-yl)-4- methoxyphenyl)acrylamide N/A; 564.5 [M + H]⁺ 1.18 696

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.77 (s, 1H), 8.42 (s, 1H), 8.30 (s, 1H), 7.48 (d, J = 7.6 Hz, 1H), 7.44 (d, J = 7.9 Hz, 1H), 7.23 (dd, J = 8.5, 1.6 Hz, 1H), 6.75 (s, 1H), 6.70 (s, 1H), 6.40- 6.32 (m, 1H), 6.27 (dd, J = 16.9, 9.8 Hz, 1H), 5.85 (dd, J = 9.0, 4.7 Hz, 1H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 4.13 (dt, J = 8.1,4.1 Hz, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.07 (d, J = 11.9 Hz, 2H), 2.83 (dd, J = 8.5, 4.5 Hz, 7H), 2.73 (q, J = 12.3 Hz, 4H), 2.55-2.48 (m, 1H), 2.45 (s, 3H), 2.29-2.24 (m, 1H), 2.08 (s, 2H), 1.71 (h, J = 7.8 Hz, 2H); 685.5[M + H]⁺ 1.59 697

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.43 (s, 1H), 8.34 (s, 1H), 7.46 (t, J = 8.0 Hz, 1H), 7.23 (d, J = 8.7 Hz, 1H), 6.75 (d, J = 4.1 Hz, 2H), 6.36 (d, J = 16.7 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.87 (dd, J = 9.0, 4.7 Hz, 1H), 5.74 (d, J = 9.8 Hz, 1H), 4.14-4.11 (m, 1H), 4.06 (d, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.78 (t, J = 4.6 Hz, 4H), 3.07 (d, J = 11.5 Hz, 2H), 2.85 (d, J = 9.7 Hz, 1H), 2.73 (d, J = 12.3 Hz, 2H), 2.63 (t, J = 4.5 Hz, 4H), 2.28 (d, J = 7.7 Hz, 2H), 2.08 (d, J = 10.9 Hz, 2H), 1.66 (d, J = 11.0 Hz, 2H); 672.4[M + H]⁺ 1.59 698

N-(2-(4- ethylpiperazine-1- yl)-4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.33 (s, 1H), 8.15 (s, 1H), 7.24 (t, J = 8.1 Hz, 1H), 7.01-6.98 (m, 2H), 6.92 (s, 1H), 6.83-6.77 (m, 1H), 6.55 (dd, J = 17.0, 10.2 Hz, 1H), 6.43 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 5.80 (dd, J = 10.2, 1.6 Hz, 1H), 5.49 (dd, J = 8.5, 4.7 Hz, 1H), 4.13 (td,J = 7.9, 4.4 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.78 (s, 3H), 3.10 (s, 4H), 2.93 (q, J = 7.3 Hz, 2H), 2.78 (dtd, J = 12.2, 7.9, 4.3 Hz, 1H), 2.37-2.28 (m, 1H), 1.97 (s, 4H), 1.29 (t, J = 7.3 Hz, 3H); 560.5[M + H]⁺ 1.03 699

N-(2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 10.24 (S, 2H), 10.01 (s, 1H), 9.19 (s, 1H), 8.30 (s, 1H), 7.28 (t, J = 7.9 Hz, 1H), 6.94-6.83 (m, 4H), 6.71 (t, J = 13.8 Hz, 1H), 6.25 (dd, J = 16.9, 1.9 Hz, 1H), 6.04 (s, 1H), 5.76 (d, J = 11.3 Hz, 1H), 5.47 (s, 1H), 4.29 (d, J = 7.6 Hz, 2H), 4.04 (t, J = 7.6 Hz, 2H), 3.79 (s, 2H), 3.78-3.76 (m, 2H), 3.75 (s, 3H), 3.65 (d, J = 14.4 Hz, 2H), 3.57 (s, 3H), 3.23 (s, 1H), 3.21-3.18 (m, 2H), 2.95- 2.85 (m, 1H), 2.79 (t, J = 11.5 Hz, 2H), 2.31 (dd, J = 12.8, 5.6 Hz, 1H), 2.19 (d, J = 11.1 Hz, 2H), 2.13-2.04 (m, 2H), 1.29 (dd, J = 11.1,3.3 Hz, 5H); 643.6[M + H]⁺ 1.27 700

N-(2-(4-(6- azaspiro[2.5]octan-6- yl)piperidine-1-yl)-5- ((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.19 (S, 1H), 8.07 (s, 1H), 7.00-6.89 (m, 2H), 6.81 (s, 1H), 6.73 (tt, J = 2.5, 9.1 Hz, 1H), 6.52-6.40 (m, 1H), 6.36 (s, 1H), 6.33-6.20 (m, 1H), 5.70 (d, J = 10.3 Hz, 1H), 5.45 (dd, J = 4.8, 8.7 Hz, 1H), 4.04 (td, J = 4.2, 7.9 Hz, 1H), 3.86 (q, J = 7.9 Hz, 1H), 3.78 (s, 3H), 3.17-3.09 (m, 6H), 2.80-2.67 (m, 3H), 2.26-2.17 (m, 1H), 2.12- 2.05 (m, 2H), 1.96-1.87 (m, 2H), 1.67-1.55 (m, 3H), 0.83-0.74 (m, 2H), 0.39 (s, 4H); 646.3[M + H]⁺ 1.59 701

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.19 (s, 1H), 7.99 (s, 1H), 7.56 (dd, J = 7.1, 2.1 Hz, 1H), 7.45-7.37 (m, 1H), 7.24 (t, J = 8.9 Hz, 1H), 6.96 (s, 1H), 6.62- 6.39 (m, 3H), 5.87 (dd, J = 10.1, 1.6 Hz, 1H), 5.54 (dd, J = 8.5, 4.8 Hz, 1H), 4.18 (td, J = 7.9, 4.2 Hz, 1H), 3.98 (dd, J = 16.0, 8.0 Hz, 1H), 3.93 (s, 3H), 3.43 (t, J = 5.8 Hz, 2H), 3.19 (dd, J = 7.1,4.2 Hz, 2H), 2.84 (dd, J = 8.1,4.0 Hz, 1H), 2.80 (s, 6H), 2.73 (s, 3H), 2.39-2.29 (m, 1H),; 570.5 [M + H]* 1.11 702

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.28 (s, 1H), 8.18(s, 1H), 7.56(dd, J = 7.1, 2.1 Hz, 1H), 7.44-7.38 (m, 1H), 7.23 (t, J = 8.9 Hz, 1H), 6.95 (s, 1H), 6.57 (dd, J = 17.1, 10.3 Hz, 1H), 6.48- 6.34 (m, 2H), 5.84 (d, J = 10.3 Hz, 1H), 5.53 (dd, J = 8.4, 4.7 Hz, 1H), 4.17 (td, j = 7.9, 4.3 Hz, 1H), 3.98 (dd, J = 16.0, 8.0 Hz, 1H), 3.90 (s, 3H), 3.10 (d, J = 15.7 Hz, 8H), 2.83 (dt, J = 16.1,6.0 Hz, 1H), 2.72 (s, 3H), 2.35 (dt, J = 8.7, 6.4 Hz, 1H),; 568.4 [M + H]⁺ 1.25 703

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4-((S)- 3-(dimethylamino)pyrol- idine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.01 (d, J = 4.4 Hz, 1H), 7.71 (s, 1H), 7.34- 7.17 (m, 1H), 7.13 (t, J = 7.5 Hz, 1H), 7.06-6.85 (m, 2H), 6.48 (dd, J = 16.9, 10.3 Hz, 1H), 6.26 (dd, J = 16.9, 1.6 Hz, 1H), 5.94 (s, 1H), 5.68 (dd, J = 10.2, 1.6 Hz, 1H), 5.63- 5.47 (m, 1H), 4.25 (td, J = 7.7, 4.1 Hz, 1H), 4.02 (q, J = 7.9 Hz, 2H), 3.72 (d, J = 3.9 Hz, 4H), 3.64-3.37 (m, 4H), 3.36-3.23 (m, 2H), 3.17 (s, 1H), 2.82-2.61 (m, 2H), 2.29-2.15 (m, 3H), 2.09 (d, J = 14.0 Hz, 2H), 1.20 (dd, J = 6.7, 5.1 Hz, 7H), 1.11 (d, J = 2.9 Hz, 2H),; 665.56[M + H] 1.38 704

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1]hep- tane-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.06 (s, 1H), 7.76 (s, 1H), 7.34 (t, J = 7.6 Hz, 1H), 7.21 (t, J = 7.1 Hz, 1H), 7.07 (t, J = 7.9 Hz, 1H), 6.88 (d, J = 17.8 Hz, 1H), 6.51 (d, J = 10.8 Hz, 1H), 6.30 (d, J = 17.1 Hz, 1H), 6.00 (s, 1H), 5.70 (dd, J = 26.0, 9.1 Hz, 2H), 4.66 (s, 1H), 4.58 (d, J = 14.4 Hz, 1H), 4.38-4.29 (m, 1H), 4.22 (d, J = 10.7 Hz, 1H), 4.09 (q, J = 7.9 Hz, 1H), 3.78 (t, J = 3.0 Hz, 4H), 3.54 (d, J = 11.5 Hz, 2H), 3.42-3.23 (m, 2H), 3.09-2.68 (m, 4H), 2.34 (dq, J = 13.6, 7.2 Hz, 2H), 2.23-1.81 (m, 6H), 1.19 (s, 2H),; 650.5[M + H] 1.53 705

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-y l)-5-((6- ((R)-3-(3-chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylam ide ¹H NMR (400 MHz, MeOD) δ 8.19 (d, J = 7.2 Hz, 1H), 7.91 (d, J = 6.5 Hz, 1H), 7.50-7.42 (m, 1H), 7.33 (t, J = 7.2 Hz, 1H), 7.19 (t, J = 7.9 Hz, 1H), 7.08 (s, 1H), 6.66 (s, 1H), 6.43 (dd, J = 16.6, 7.6 Hz, 1H), 6.12(s, 1H), 5.78 (s, 1H), 4.76 (s, 1H), 4.45 (s, 1H), 4.21 (q, J = 7.3 Hz, 2H), 3.90 (d, J = 7.1 Hz, 5H), 3.75 (s, 3H), 3.67 (s, 2H), 3.42 (s, 2H), 3.11 (s, 5H), 2.47 (dt, J = 13.0, 6.6 Hz, 1H), 2.36 (s, 3H), 2.20 (s, 2H), 2.03 (d, J = 12.5 Hz, 1H), 1.31 (s, 1H),; 679.6[M + H] 1.51 706

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4-((2S,6R)- 2,6- dimethylmorpholino)pip- eridine-1-yl)-4- methoxyphenyl)acrylam ide ; 666.5[M + H]⁺ 1.52 707

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylam ide ¹H NMR (400 MHz, DMSO-d₆) δ 9.15 (s, 1H), 8.26 (s, 1H), 8.01 (s, 1H), 7.54 (t, J = 7.6 Hz, 1H), 7.38 (t, J = 7.3 Hz, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.89 (s, 1H), 6.74-6.63 (m, 1H), 6.30-6.17 (m, 2H), 5.85- 5.67 (m, 2H), 4.27 (d, J = 9.0 Hz, 1H), 4.00 (q, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.26-3.18 (m, 4H), 2.73 (d, J = 4.7 Hz, 4H), 1.34-1.30 (m, 7H), 1.30-1.22 (m, 8H), 1.09 (p, J = 7.2, 6.6 Hz, 4H),; 679.5[M + H]⁺ 1.29 708

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylam ide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.62 (s, 1H), 8.16 (d, J = 0.9 Hz, 1H), 7.56 (t, J = 8.1 Hz, 1H), 7.41 (dd, J = 10.6, 2.0 Hz, 1H), 7.29 (dd, J = 8.4, 2.0 Hz, 1H), 6.82 (s, 1H), 6.74-6.57 (m, 1H), 6.34 (s, 1H), 6.20 (dd, J = 16.9, 2.0 Hz, 1H), 5.73 (ddd, J = 10.4, 8.7, 2.2 Hz, 1H), 5.55 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (td, J = 7.9, 3.9 Hz, 1H), 3.93-3.72 (m, 4H), 3.04 (d, J = 10.8 Hz, 2H), 2.67 (dddd, J = 47.8, 24.7, 12.0, 6.5 Hz, 5H), 2.45 (s, 3H), 2.35-2.16 (m, 2H), 1.90 (s, 7H), 1.69 (q, J = 13.6 Hz, 2H), 0.97 (d, J = 6.5 Hz, 6H),; 679.5[M + H]⁺ 1.23 709

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4-((2S,6R)- 2,6- dimethylmorpholino)pip- eridine-1-yl)-4- methoxyphenyl)acrylam ide ¹H NMR (400 MHz, Methanol-d₄) 5 8.20 (d, J = 9.6 Hz, 1H), 7.91 (s, 1H), 7.50 (t, J = 7.9 Hz, 1H), 7.26 (dd, J = 32.3, 9.2 Hz, 2H), 7.07 (d, J = 34.4 Hz, 1H), 6.68 (dd, J = 17.3, 10.6 Hz, 1H), 6.53-6.36 (m, 1H), 6.07 (s, 1H), 5.88 (d, J = 8.8 Hz, 1H), 5.53 (s, 1H), 4.44 (td, J = 7.7, 4.1 Hz, 1H), 4.19 (q, J = 7.7 Hz, 1H), 4.03 (s, 2H), 3.90 (d,J = 6.2 Hz, 3H), 3.61 (d, J = 12.1 Hz, 2H), 3.39 (d, J = 40.6 Hz, 4H), 3.19-2.95 (m, 3H), 2.81 (t, J = 11.5 Hz, 2H), 2.55- 1.98 (m, 5H), 1.30 (d, J = 6.3 Hz, 6H),; 666.5[M + H]+ 1.34 710

N-(2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)piperidine-1- yl)-5-((6-((R)-3- (3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.61 (s, 1H), 9.94 (s, 1H), 9.16 (s, 1H), 8.31 (s, 1H), 7.90 (s, 1H), 7.42 (td, J = 8.1,6.2 Hz, 1H), 7.23-7.16 (m, 2H), 7.13 (td, J = 8.6, 8.0, 2.5 Hz, 1H), 6.91 (s, 1H), 6.68 (dd, J = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.09 (s, 1H), 5.76 (dd, J = 10.2, 1.9 Hz, 1H), 5.54 (t, J = 7.1 Hz, 1H), 4.29 (dd, J = 7.6, 4.4 Hz, 1H), 4.18-4.08 (m, 2H), 4.04 (q, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.46 (d, J = 11.8 Hz, 2H), 3.22 (q, J = 15.5 Hz, 3H), 3.00-2.86 (m, 1H), 2.72 (dq, J = 21.6, 11.3, 10.7 Hz, 4H), 2.37-2.27 (m, 1H), 2.23 (d, J = 11.5 Hz, 2H), 2.06 (d, J = 10.2 Hz, 2H), 1.17 (d, J = 6.3 Hz, 6H),; 632.5[M + H]⁺ 1.21 711

N-(5-((6-((R)-3- (3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4- isopropylpiper- azine-1-yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 12.22 (s, 1H), 11.88 (s, 1H), 9.69 (s, 1H), 9.15 (s, 1H), 8.28 (s, 1H), 7.98 (s, 1H), 7.42 (td, J = 8.0, 6.1 Hz. 1H), 7.28-7.16 (m, 2H), 7.12 (td, J = 8.7, 2.6 Hz, 1H), 6.89 (s, 1H), 6.69 (dd, J = 16.8, 10.3 Hz, 1H), 6.25 (dd, J = 16.8, 1.9 Hz, 1H), 6.14 (s, 1H), 5.76 (d, J = 10.3 Hz, 1H), 5.59-5.44 (m, 1H), 4.27 (s, 1H), 4.00 (s, 3H), 3.80 (s, 3H), 3.77 (s, 1H), 3.68 (s, 4H), 3.61 (d, J = 7.0 Hz, 1H), 3.46 (s, 1H), 3.21 (d, J = 11.9 Hz, 2H), 2.89 (s, 1H), 2.78 (dd, J = 19.8, 8.6 Hz, 2H), 2.31 (dd, J = 12.1,5.0 Hz, 1H), 2.15 (s, 2H), 2.05 (s, 2H), 1.31 (d, J = 6.6 Hz, 6H),; 645.6[M + H]⁺ 1.11 712

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpho- lino)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (S, 1H), 7.61-7.51 (m, 1H), 7.46- 7.36 (m, 1H), 7.23 (t, J = 8.9 Hz,1 H), 6.92 (s, 1H), 6.57 (dd, J = 10.2,17.0 Hz, 1H), 6.45 (s, 1H), 6.42-6.31 (m, 1H), 5.82 (d, J = 10.3 Hz, 1H), 5.57-5.49 (m, 1H), 4.18- 4.12 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.81-3.74 (m, 2H), 3.21-3.09 (m, 4H), 2.84-2.78 (m, 2H), 2.64-2.57 (m, 1H), 2.40-2.28 (m, 1H), 2.15-2.09 (m, 3H), 1.86-1.76 (m, 2H), 1.23 (s, 3H), 1.21 (s, 3H); 665.3[M + H]⁺ 1.66 713

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (3- (dimethylamino) azetidine-1- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.17 (s, 1H), 7.11-7.04 (m, 2H), 6.92 (s, 1H), 6.88-6.80 (m, 1H), 6.61-6.43 (m, 2H), 6.41-6.29 (m, 1H), 5.84-5.75 (m, 1H), 5.60-5.51 (m, 1H), 4.18-4.12 (m, 1H), 3.88 (s, 3H), 3.26-3.16 (m, 3H), 3.16- 3.03 (m, 5H), 2.88-2.73 (m, 4H), 2.37- 2.29 (m, 1H), 2.25-2.19 (m, 7H), 1.63- 1.50 (m, 2H); 665.3[M + H]⁺ 1.73 714

N-(5-((6-((R)-3-(2,5- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6R)-2,6- dimethylmorpholino)pip- eridine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.28- 7.21 (m, 1H), 7.20-7.11 (m, 1H), 7.09-6.99 (m, 1H), 6.92 (s, 1H), 6.62-6.48 (m, 2H), 6.42-6.32 (m, 1H), 5.86-5.72 (m, 2H), 4.18- 4.11 (m, 1H), 4.03-3.94 (m, 1H), 3.89 (s, 3H), 3.80-3.72 (m, 2H), 3.21-3.14 (m, 2H), 3.10-3.05 (m, 2H), 2.87-2.77 (m, 2H), 2.59- 2.51 (m, 1H), 2.35-2.20 (m, 1H), 2.12-2.06 (m, 3H), 1.85-1.72 (m, 2H), 1.22 (s, 3H), 1.20 (s, 3H); 650.3[M + H]⁺ 1.82 715

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4-(4- isopropylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ′H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18(s, 1H), 7.59- 7.53 (m, 1H) 7.44-7.37 (m, 1H), 7.23 (t, J = 8.8 Hz, 1H), 6.92 (s, 1H), 6.62-6.50 (m, 1H), 6.45 (s, 1H), 6.42-6.30 (m, 1H), 5.86-5.76 (m, 1H), 5.56-5.49 (m, 1H), 4.18- 4.13 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.88 (s, 3H), 3.20-3.14 (m, 3H), 3.09-3.00 (m,4H), 2.98- 2.90 (m, 3H), 2.86-2.76 (m, 4H), 2.62-2.54 (m, 1H), 2.38-2.29 (m, 1H), 2.10-2.02 (m, 2H), 1.86- 1.73 (m, 2H), 1.29 (s, 3H), 1.27 (s, 2H); 679.3[M + H]⁺ 1.54 716

N-(2-(4-((1S,4S)-2- oxa-5- azabicyclo[2.2.1 ]hepta ne-5-yl)piperidine-1- yl)-5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.59- 7.50 (m, 1H), 7.49-7.35 (m, 1H), 7.23 (t, J = 8.8 Hz, 1H), 6.93 (s, 1H), 6.64-6.50 (m, 1H), 6.45 (s, 1H), 6.42-6.30 (m, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.58-5.48 (m, 1H), 4.18-4.13 (m, 3H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 3H), 3.77-3.70 (m, 1H), 3.29-3.22 (m, 1H), 3.19- 3.12 (m, 2H), 2.90-2.79,(m, 4H), 2.39-2.28 (m, 1H), 2.21-2.09 (m, 1H), 2.09-2.00 (m, 3H), 1.82- 1.76 (rn, 1H); 650.3[M + H]⁺ 2.27 717

N-(2-(4-(4-cyclopropyl- 1,4-diazepane-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(3,5- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.25 (s, 1H), 8.11 (s, 1H), 7.04- 6.94 (m, 2H), 6.84 (s, 1H), 6.77 (tt, J = 2.5, 9.1 Hz, 1H), 6.51 (dd, J = 10.2, 17.0 Hz, 1H), 6.40 (s, 1H), 6.31 (d, J = 16.8 Hz, 1H), 5.75 (d, J = 10.3 Hz, 1H), 5.50 (dd, J = 4.8, 8.7 Hz, 1H), 4.09 (td, J = 4.2, 7.9 Hz, 1H), 3.93-3.85 (m, 1H), 3.82 (s, 3H), 3.21 (d, J = 5.4 Hz, 2H), 3.13 (ddq, J = 4.4, 8.7, 12.6 Hz, 4H), 3.04 (q, J = 5.1 Hz, 3H), 2.91 (t, J = 5.8 Hz, 2H), 2.76 (ddt, J = 5.1, 9.9, 14.4 Hz, 4H), 2.33-2.20 (m, 1H), 2.09- 1.98 (m, 3H), 1.94 (dt, J = 5.3, 11.1 Hz, 3H), 0.51 (dd, J = 4.3, 6.4 Hz, 2H), 0.49-0.40 (m, 2H); 675.4[M + H]⁺ 2.07 718

N-(2-(4,4-difluoro-[1,4- bipiperidine]-1′-yl)-5- ((6-((R)-3-(3,5- difluorophenyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.10 (s, 1H), 9.20 (s, 1H), 8.32 (s, 1H), 7.90 (s, 1H), 7.17 (tt, J = 9.2, 2.4 Hz, 1H), 7.10 (h, J = 4.7 Hz, 2H), 6.90 (s, 1H), 6.71 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.1, 1.9 Hz, 1H), 6.13 (s, 1H), 5.79-5.71 (m, 1H), 5.55 (dd, J = 8.6, 5.4 Hz, 1H), 4.04 (q, J = 7.7 Hz, 3H), 3.81 (s, 4H), 3.65 (d, J = 12.2 Hz, 3H), 3.41 (d, J = 21.8 Hz, 2H), 3.28-3.11 (m, 4H), 2.93 (tq, J = 12.0, 6.8, 5.7 Hz, 2H), 2.84-2.57 (m, 5H), 2.44- 2.28 (m, 4H), 2.23 (d, J = 10.2 Hz, 2H), 2.08 (d, J = 9.8 Hz, 2H),; 656.5[M + H]⁺ 1.52 719

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.75 (s, 1H), 8.41 (s, 1H), 8.29 (d, J = 1.0 Hz, 1H), 7.50 (dd, J = 7.0, 2.2 Hz, 1H), 7.30 (ddd, J = 8.6, 4.6, 2.3 Hz, 1H), 7.09 (t, J = 8.7 Hz, 2H), 6.73 (s, 1H), 6.64(s, 1H), 6.27 (dd, J = 16.9, 9.8 Hz, 1H), 5.74 (dd, J = 9.8, 1.8 Hz, 1H), 5.62 (dd, J = 8.7, 4.6 Hz, 1H), 5.29 (s, 1H), 4.14 (td, J = 8.0, 4.2 Hz, 1H), 3.83 (s, 4H), 3.10-3.00 (m, 3H), 2.80-2.67 (m, 5H), 2.56-2.46 (m, 2H), 2.46 (s, 3H), 2.31 (dtd, J = 12.5, 8.1,4.6 Hz, 2H), 2.03 (s, 8H), 1.76-1.63 (m, 3H),; 651,5[M + H]⁺ 1.51 720

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide 638.5[M + H]⁺ 1.58 721

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 10.05 (s, 1H), 9.22 (s, 1H), 8.31 (s, 1H), 7.58 (dd, J = 7.1,2.0 Hz, 1H), 7.46-7.36 (m, 3H), 6.89 (d, J = 12.7 Hz, 1H), 6.72 (dd, J = 16.8, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.13 (s, 1H), 5.80-5.72 (m, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.04 (q, J = 7.7 Hz, 5H), 3.81 (s, 3H), 3.67 (s, 4H), 3.57 (d, J = 4.7 Hz, 3H), 3.46 (d, J = 9.0 Hz, 1H), 3.31-3.15 (m, 5H), 2.98-2.74 (m, 5H), 2.39-2.24 (m, 2H), 2.24-2.01 (m, 5H), 1.29 (t, J = 7.2 Hz, 4H),; 665.6[M + H]⁺ 1.52 722

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(4-methyl-2- oxopiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 12.15 (s, 1H), 10.15 (s, 1H), 8.34 (s, 1H), 7.97 (s, 1H), 7.16 (tt, J = 9.3, 2.4 Hz, 1H), 7.12-6.99 (m, 3H), 6.75 (dd, J = 16.9, 10.3 Hz, 1H), 6.3O- 6.21 (m, 1H), 5.80-5.74 (m, 1H), 5.56 (dd, J = 8.6, 5.4 Hz, 1H), 4.04 (q, J = 7.7 Hz, 1H), 3.83 (s, 4H), 3.77- 3.66 (m, 2H), 3.60 (s, 1H), 3.56 (s, 2H), 3.38 (s, 2H), 3.22 (s, 3H), 3.08 (d, J = 10.2 Hz, 2H), 2.94 (ttd, J = 12.2, 7.5, 4.6 Hz, 2H), 2.81 (s, 3H), 2.37-2.08 (m, 3H), 1.65 (s, 2H),; 649.5[M + H]⁺ 1.59 723

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.18 (s, 1H), 7.57 (dd, J = 7.1, 2.1 Hz, 1H), 7.44-7.37 (m, 1H), 7.23 (t, J = 8.9 Hz, 1H), 6.96 (s, 1H), 6.59- 6.43 (m, 2H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.55 (dd, J = 8.3, 4.7 Hz, 1H), 4.16 (td, J = 7.8, 4.1 Hz, 1H), 4.03-3.93 (m, 1H), 3.90 (s, 3H), 3.00 (t, J = 4.7 Hz, 4H), 2.81 (ddd, J = 25.7, 16.6, 12.7 Hz, 5H), 2.59 (q, J = 7.2 Hz, 2H), 2.41-2.27 (m, 1H), 1.20 (t, J = 7.2 Hz, 3H),; 582.2 [M + H]⁺ 1.16 724

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4- isopropylpiperazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.18(s, 1H), 7.57 (dd, J = 7.1, 2.1 Hz, 1H), 7.44-7.37 (m, 1H), 7.23 (t, J = 8.9 Hz, 1H), 6.95 (s, 1H), 6.59- 6.43 (m, 2H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.81 (d, J = 10.2 Hz, 1H), 5.55 (dd, J = 8.4, 4.7 Hz, 1H), 4.16 (td, J = 7.9, 4.3 Hz, 1H), 4.01-3.94 (m, 1H), 3.89 (d, J = 5.2 Hz, 3H), 3.07-2.95 (m, 4H), 2.82 (p, J = 12.5 Hz, 6H), 2.34 (ddd, J = 15.6, 7.9, 4.1 Hz, 1H), 1.17 (t, J = 10.7 Hz, 6H),; 596.4 [M + H]⁺ 1.25 725

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4- cyclopropylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.18 (d, J = 0.7 Hz, 1H), 7.57 (dd, J = 7.1,2.1 Hz, 1H), 7.45-7.38 (m, 1H), 7.23 (t, J = 8.8 Hz, 1H), 6.92 (s, 1H), 6.60-6.44 (m, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 5.82 (dd, J = 10.2,1.3 Hz, 1H), 5.55 (dd, J = 8.5, 4.7 Hz, 1H), 4.16 (td, J = 7.9, 4.2 Hz, 1H), 3.98 (dd, J = 16.1, 8.1 Hz, 1H), 3.89 (S, 3H), 2.98-2.75 (m, 9H), 2.39-2.27 (m, 1H), 1.85-1.76 (m, 1H), 0.61-0.44 (m, 4H),; 594.3 [M + H]⁺ 1.30 726

N-(2-(4-((1R,4R)-2- oxa-5- azabicyclo[2.2.1]hepta ne-5-yl)piperidine-1- yl)-4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.75 (s, 1H), 9.20 (d, J = 29.9 Hz, 1H), 8.28 (s, 1H), 7.88 (d, J = 12.9 Hz, 1H), 7.28 (t, J = 7.9 Hz, 1H), 6.95- 6.83 (m, 4H), 6.65-6.53 (m, 1H), 6.28-6.20 (m, 1H), 6.06 (s, 1H), 5.76 (d, J = 10.3 Hz, 1H), 5.51-5.42 (m, 1H), 4.71 (s, 1H), 4.62 (d, J = 27.3 Hz, 1H), 4.28 (d, J = 5.5 Hz, 1H), 4.21 (d, J = 10.2 Hz, 1H), 4.02 (s, 1H), 3.80 (s, 3H), 3.75 (s, 3H), 3.71 (d, J = 9.7 Hz, 1H), 3.47 (t, J = 9.4 Hz, 2H), 3.26-3.16 (m, 2H), 2.91- 2.76 (m, 2H), 2.76-2.65 (m, 1H), 2.36-2.24 (m, 2H), 2.09 (d, J = 14.7 Hz, 4H); 628.6[M + H]* 1.41 727

N-(2-(4-((2S,6R)-2,6- dimethylmorpholino)pip- eridine-1-yl)-4- methoxy-5-((6-((R)-3- (3- methoxyphenyl)isoxazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.79 (s, 1H), 9.13 (s, 1H), 8.28 (s, 1H), 7.91 (s, 1H), 7.28 (t, J = 7.9 Hz, 1H), 6.94-6.85 (m, 4H), 6.67 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.04 (s, 1H), 5.76 (d, J = 10.2 Hz, 1H), 5.51-5.42 (m, 1H), 4.28 (t, J = 6.1 Hz, 2H), 4.09 (s, 2H), 3.79 (s, 3H), 3.75 (s, 3H), 3.47 (d,J = 11.7Hz, 2H), 3.27 (s, 1H), 3.21 (d, J = 12.0 Hz, 2H), 2.95-2.86 (m, 1H), 2.72 (dt, J = 30.7, 11.2 Hz, 4H), 2.35-2.27 (m, 1H), 2.22 (d, J = 11.6 Hz, 2H), 2.10-1.98 (m, 2H), 1.18 (s, 3H), 1.16(s, 3H); 644.6[M + H]⁺ 1.55 728

N-(2-(4-((R)-3- (dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.51 (s, 1H), 9.21 (s, 1H), 8.26 (s, 1H), 7.95 (s, 1H), 7.28 (t, J = 7.9 Hz, 1H), 6.95-6.89 (m, 3H), 6.85 (dd, J = 8.3, 2.6 Hz, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 1H), 6.13(S, 1H), 5.75 (d, J = 10.3 Hz, 1H), 5.48 (t, J = 6.8 Hz, 1H), 4.30-4.20 (m, 1H), 3.98 (s, 1H), 3.80 (s, 3H), 3.75 (s, 3H), 3.63 (d, J = 4.1 Hz, 2H), 3.37 (s, 2H), 3.23-3.18 (m, 2H), 2.84 (s, 8H), 2.78-2.70 (m, 2H), 2.39 (dd, J = 9.7, 7.5 Hz, 1H), 2.29 (dd, J = 12.7, 5.0 Hz, 1H), 2.22-2.13(m, 2H), 2.12-2.00 (m, 2H); 643.6[M + H]⁺ 1.36 729

N-(2-(4-((S)-3- (dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.69 (s, 1H), 9.22 (s, 1H), 8.27 (s, 1H), 7.91 (s, 1H), 7.28 (t, J = 7.9 Hz, 1H), 6.92 (t, J = 6.3 Hz, 3H), 6.85 (dd, J = 8.3, 2.6 Hz, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 16.9, 1.9 Hz, 1H), 6.08 (s, 1H), 5.76 (d, J = 10.3 Hz, 1H), 5.52- 5.42 (m, 1H), 4.30-4.24 (m, 1H), 4.01- 3.99 (m, 1H), 3.80 (s, 3H), 3.75 (s, 3H), 3.57-3.48 (m, 2H), 3.44-3.28 (m, 2H), 3.25-3.19 (m, 2H), 2.84 (s, 8H), 2.80- 2.69 (m, 2H), 2.45-2.36 (m, 1H), 2.34- 2.27 (m, 1H), 2.16 (d, J = 19.9 Hz, 2H), 2.07 (d, J = 16.0 Hz, 2H); 643.6[M + H]⁺ 1.36 730

N-(4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.14 (s, 1H), 7.24 (t, J = 8.1 Hz, 1H), 6.99 (dd, J = 5.0, 2.9 Hz, 2H), 6.92 (d, J = 8.1 Hz, 1H), 6.82-6.78 (m, 1H), 6.56-6.46 (m, 1H), 6.39 (s, 1H), 6.37- 6.30 (m, 1H), 5.81-5.76 (m, 1H), 5.49- 5.45 (m, 1H), 4.74 (t, J = 6.7 Hz, 2H), 4.66 (t, J = 6.2 Hz, 2H), 4.13 (td, J = 7.8, 4.4 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.90 (s, 1H), 3.86 (s, 3H), 3.78 (s, 3H), 3.69- 3.61 (m, 1H), 2.99 (t, J = 4.8 Hz, 4H), 2.78 (dtd, J = 12.3, 8.0, 4.4 Hz, 1H), 2.60 (s, 3H), 2.37-2.28 (m, 1H); 588.5[M + H]⁺ 1.11 731

N-(2-(4- (dimethylamino)piper- idine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.44 (s, 1H), 8.33 (s, 1H), 7.24 (d, J = 7.9 Hz, 2H), 7.06-7.01 (m, 2H), 6.79 (dd, J = 8.1,2.5 Hz, 1H), 6.73 (s, 1H), 6.66 (s, 1H), 6.37 (d, J = 16.4 Hz, 1H), 6.30 (dd, J = 16.5, 9.8 Hz, 1H), 5.75 (dd, J = 9.5, 2.0 Hz, 1H), 5.66 (dd, J = 8.7, 4.4 Hz, 1H), 4.15 (td, J = 8.0, 4.4 Hz, 1H), 4.05 (q, J = 8.2 Hz, 1H), 3.84 (s, 3H), 3.80 (s, 3H), 3.09 (d, J = 11.4 Hz, 2H), 2.82-2.70 (m, 4H), 2.49 (s, 6H), 2.41- 2.35 (m, 1H), 2.12 (s, 2H), 1.80 (dd, J = 12.0, 4.0 Hz, 2H); 574.5[M + H]⁺ 1.23 732

N-(5-((6-((R)-3- (4- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine- 1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.23 (s, 1H), 8.06 (s, 1H), 7.26 (dd, J = 37.4, 8.4 Hz, 4H), 6.77 (s, 1H), 6.35 (d, J = 16.7 Hz, 1H), 5.41 (dd, J = 8.4, 4.6 Hz, 1H), 4.01 (dd, J = 1 1.9, 7.6 Hz, 1H), 3.86 (d, J = 7.9 Hz, 1H), 3.74 (s, 3H), 3.44 (s, 1H), 3.21 (dt, J = 3.2, 1.6 Hz, 2H), 3.09-2.89 (m, 8H), 2.71-2.60 (m, 4H), 2.54 (s, 1H), 2.19 (ddd, J = 17.9, 12.7, 6.7 Hz, 1H), 1.91 (d, J = 11.7 Hz, 2H); 633.6 [M + H]⁺ 1.20 733

N-(5-((6-((R)-3- (4- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((R)- 3-morpholinopyrol- idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.68 (s, 1H), 8.35 (s, 1H), 8.12 (s, 1H), 7.40 (d, J = 8.4 Hz, 2H), 7.30 (d, J = 8.5 Hz, 2H), 6.90 (s, 1H), 6.75 (s, 1H), 6.67 (s, 1H), 6.31 (dt, J = 16.9, 13.3 Hz, 2H), 5.74 (d, J = 10.8 Hz, 1H), 5.66 (dd, J = 8.5, 4.5 Hz, 1H), 4.18- 4.10 (m, 1H), 4.06 (dd, J = 15.7, 7.8 Hz, 1H), 3.83 (s, 3H), 3.76 (t, J = 4.5 Hz, 4H), 3.26-3.04 (m, 4H), 3.03-2.93 (m, 1H), 2.74 (ddd, J = 16.3, 7.9, 4.0 Hz, 1H), 2.63- 2.43 (m, 4H), 2.38-2.28 (m, 1H), 2.18 (dd, J = 12.1, 7.5 Hz, 1H), 1.94 (dt, J = 19.8, 7.8 Hz, 1H), 1.25 (s, 1H); 606.4 [M + H]⁺ 1.17 734

N-(5-((6-((R)-3- (4- chlorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((S)- 3-morpholinopyrol- idine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.00 (s, 1H), 7.55 (s, 1H), 7.27 (dd, J = 36.0, 8.5 Hz, 4H), 6.54 (s, 1H), 6.41 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 1.4 Hz, 1H), 6.18 (s, 1H), 5.67 (dd, J = 10.2, 1.4 Hz, 1H), 5.40 (dd, J = 8.4, 4.6 Hz, 1H), 4.00 (dt, J = 7.8, 3.9 Hz, 1H), 3.81 (q, J = 7.9 Hz, 1H), 3.74 (s, 3H), 3.63 (t, J = 4.6 Hz, 4H), 3.27-3.12 (m, 11H), 2.88- 2.79 (m, 1H), 2.72-2.61 (m, 1H), 2.56- 2.36 (m, 4H), 2.25-2.15 (m, 1H), 2.14- 2.05 (m, 1H), 1.84-1.72 (m, 1H); 606.5 [M + H]⁺ 1.18 735

N-(2-(4-((2- (dimethylamino)e thyl)(methyl)amin o)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3- phenylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 6 8.47 (s, 1H), 8.36 (s, 1H), 7.46 (d, J = 7.6 Hz, 2H), 7.33 (t, J = 7.5 Hz, 2H), 7.25 (d, J = 7.3 Hz, 1H), 6.95 (s, 1H), 6.75 (s, 1H), 6.68 (d, J = 6.9 Hz, 1H), 6.34 (d, J = 1.8 Hz, 1H), 6.29 (d, J = 9.8 Hz, 1H), 5.75 (dd, J = 9.7, 1.8 Hz, 1H), 5.70 (dd, J = 8.7, 4.5 Hz, 1H), 4.14 (dd, J = 8.0, 4.5 Hz, 1H), 4.07 (d, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.57 (s, 2H), 3.05 (d, J = 11.7 Hz, 2H), 2.78-2.65 (m, 4H), 2.51 (q, J = 8.1,7.0 Hz, 3H), 2.35 (d, J = 14.5 Hz, 9H), 1.98 (d, J = 12.7 Hz, 2H), 1.75- 1.64(m, 2H),;601.6[M + H]⁺ 1.35 736

N-(4-methoxy-2-(4- ((2- methoxyethyl)(methyl)- amino)piperidine-1- yl)-5-((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.01 (s, 1H), 9.17 (s, 1H), 8.30 (s, 1H), 7.93 (s, 1H), 7.37 (m, 4H), 7.30 (m, 1H), 6.87 (m, 1H), 6.76 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 1H), 6.04 (s, 1H), 5.76 (dd, J = 10.1,2.0 Hz, 1H), 5.54-5.48 (m, 1H), 4.30 (dd, J = 7.7, 4.6 Hz, 1H), 4.06 (q, J = 7.7 Hz, 2H), 3.79 (s, 3H), 3.60 (m, 6H), 3.34 (s, 3H), 3.17 (s, 3H), 3.11 (m, 4H), 2.78 (m, 3H), 2.72 (m, 1H),; 588.6 [M + H]⁺ 1.87 737

N-(2-(4-((1S,4S)-5- ethyl-2,5- diazabicyclo[2.2.1 ]hept- ane-2-yl)piperidine- 1-yl)-4-methoxy-5-((6- ((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.79 (s, 1H), 9.24 (s, 1H), 8.28 (s, 1H), 7.86 (s, 1H), 7.37 (m, 4H), 7.33-7.25 (m, 1H), 6.90 (d, J = 16.8 Hz, 1H), 6.66- 6.51 (m, 1H), 6.24 (dd, J = 17.0, 1.8 Hz, 1H), 6.07 (m, 1H), 5.76 (d,J = 10.3 Hz, 1H), 5.51 (m, 1H), 4.56 (s, 1H), 4.29 (s, 1H), 4.04 (dd, J = 15.3, 7.5 Hz, 2H), 3.80 (s, 3H), 3.13 (m, 1H), 3.01 (m, 2H), 2.90 (m, 2H), 2.73 (m, 4H), 2.37- 2.24 (m,2H), 2.18-1.95 (m, 4H), 1.78- 1.68 (m, 1H), 1.33-1.21 (m, 6H),; 625.7 [M + H]⁺ 1.76 738

N-(2-(4-((1R,4R)-5- ethyl-2,5- diazabicyclo[2.2.1]hept- ane-2-yl)piperidine- 1-yl)-4-methoxy-5-((6- ((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.76 (s, 1H), 9.25 (s, 1H), 8.28 (s, 1H), 7.86 (s, 1H), 7.37 (m, 4H), 7.29 (m, 1H), 6.89 (d, J = 17.2 Hz, 1H), 6.57 (m, 1H), 6.24 (dd, J = 17.1, 1.8 Hz, 1H), 6.06 (m, 1H), 5.76 (d, J = 10.3 Hz, 1H), 5.50 (s, 1H), 4.61-4.51 (m, 1H), 4.34-4.25 (m, 1H), 4.04 (m, 2H), 3.80 (s, 3H), 3.17 (m, 1H), 3.02 (m, 2H), 2.91 (m, 2H), 2.74 (m, 4H), 2.34-2.29 (m, 2H), 2.06 (m, 4H), 1.73 (dt, J = 14.0, 6.5 Hz, 1H), 1.28 (m, 6H),; 625.7 [M + H]⁺ 1.80 739

N-(2-(4-(4-(2- (dimethylamino)ethyl) piperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 7.46 (d, J = 7.5 Hz, 2H), 7.34 (t, J = 7.6 Hz, 2H), 7.24 (t, J = 7.3 Hz, 1H), 6.95 (S, 1H), 6.74 (s, 1H), 6.68 (s, 1H), 6.34 (s, 1H), 6.27 (s, 1H), 5.75 (s, 1H), 5.68 (s, 1H), 4.16 (s, 1H), 4.07 (s, 1H), 3.84 (s, 3H), 3.58 (s, 1H), 3.30 (t, J = 6.1 Hz, 1H), 3.23-3.13 (m, 1H), 3.04 (s, 2H), 2.95 (t, J = 6.9 Hz, 1H), 2.74 (m, 6H), 2.65 (m, 7H), 2.45 (s, 6H), 2.40 (s, 2H), 2.08 (d, J = 12.5 Hz, 2H),; 656.7 [M + H]⁺ 1.72 740

N-(2-(4- (dimethylamino)-[1,4′- bipiperidine]-1′-yl)-4- methoxy-5-((6-((R)-3- phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.46 (d, J = 7.4 Hz, 2H), 7.34 (t, J = 7.5 Hz, 2H), 7.24 (t, J = 7.4 Hz, 1H), 6.94 (s, 1H), 6.74 (s, 1H), 6.69 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd,J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 5.70 (dd, J = 8.6, 4.5 Hz, 1H), 4.14 (dd, J = 7.9, 4.5 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.23 (t, J = 6.2 Hz, 2H), 2.75-2.70 (m, 2H), 2.33 (s, 6H), 2.28 (s, 3H), 2.08-2.02 (m, 2H), 1.89 (d, J = 12.4 Hz, 2H), 1.67 (t, J = 6.2 Hz, 2H), 1.58 (dd, J = 11.9, 3.5 Hz, 2H), 1.26 (s, 3H), 1.12 (t, J = 7.2 Hz, 2H),; 627.6[M + H] 1.02 741

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine-1- yl)-5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.60 (d, J = 51.9 Hz, 1H), 9.95 (s, 1H), 9.19(s, 1H), 8.31 (d, J = 3.5 Hz, 1H), 7.90 (s, 1H), 7.42 (q, J = 7.3 Hz, 1H), 7.20 (t, J = 9.5 Hz, 2H), 7.13 (t, J = 8.7 Hz, 1H), 6.89 (s, 1H), 6.77-6.59 (m, 1H), 6.25 (d, J = 16.9 Hz, 1H), 6.09 (s, 1H), 5.76 (d, J = 10.2 Hz, 1H), 5.54 (t, J = 7.0 Hz, 1H), 4.50 (d, J = 13.8 Hz, 1H), 4.30 (s, 2H), 4.03 (d, J = 15.2 Hz, 3H), 3.80 (s, 3H), 3.71 (s, 1H), 3.49 (s, 2H), 3.37 (d, J = 16.8 Hz, 1H), 3.22 (d, J = 12.1 Hz, 3H), 2.97 (d, J = 28.0 Hz, 2H), 2.78 (s, 2H), 2.32 (q, J = 6.0 Hz, 1H), 2.19 (s, 2H), 2.06 (s, 3H),; 645.6[M + H]⁺ 1.44 742

N-(5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine- 1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.88 (s, 1H), 9.18 (s, 1H), 8.30 (s, 1H), 7.92 (d, J = 15.7 Hz, 1H), 7.42 (td, J = 8.1,6.2 Hz, 1H), 7.24-7.16 (m, 2H), 7.13 (td, J = 8.8, 2.6 Hz, 1H), 6.89 (s, 1H), 6.69 (dd, J = 16.9, 10.1 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 1H), 6.10(s, 1H), 5.80-5.71 (m, 1H), 5.54 (dd, J = 8.5, 5.6 Hz, 1H), 4.28 (dd, J = 7.7, 4.2 Hz, 2H), 4.07-4.00 (m, 4H), 3.80 (s, 3H), 3.75 (d, J = 9.1 Hz, 2H), 3.57 (s, 2H), 3.22 (d, J = 11.9 Hz, 2H), 2.97-2.89 (m, 1H), 2.83 (d, J = 13.2 Hz, 3H), 2.80-2.70 (m, 2H), 2.32 (h, J = 7.5 Hz, 2H), 2.18 (s, 2H), 2.06 (d, J = 11.9 Hz, 2H),;617.6[M + H]⁺ 1.10 743

N-(5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.34 (s, 1H), 9.84 (s, 1H), 9.17 (s, 1H), 8.30 (s, 1H), 7.92 (s, 1H), 7.42 (td, J = 7.9, 6.1 Hz, 1H), 7.24-7.16 (m, 2H), 7.13 (td, J = 8.6, 2.7 Hz, 1H), 6.90 (s, 1H), 6.66 (dd, J = 17.0, 10.3 Hz, 1H), 6.25 (dd, J = 16.9, 1.9 Hz, 1H), 6.11 (s, 1H), 5.80-5.70 (m, 1H), 5.54 (t, J = 7.1 Hz, 1H), 4.31-4.26 (m, 2H), 4.03-3.94 (m, 4H), 3.81 (s, 3H), 3.45 (d, J = 12.0 Hz, 2H), 3.30 (s, 1H), 3.22 (d, J = 11.5 Hz, 2H), 3.14 (d, J = 11.6 Hz, 2H), 2.97-2.87 (m, 1H), 2.77 (t, J = 11.8 Hz, 2H), 2.32 (td, J = 13.0, 7.7 Hz, 1H), 2.20 (d, J = 11.7 Hz, 2H), 2.02 (d, J = 9.9 Hz, 2H),; 604.6[M + H]⁺ 1.13 744

N-(2-(4-((S)-3- (dimethylamino)py rolidine-1- yl)piperidine-1-yl)- 5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.21 (d, J = 8.8 Hz, 1H), 8.26 (d, J = 7.9 Hz, 1H), 7.95 (s, 1H), 7.42 (q, J = 7.6 Hz, 1H), 7.26-7.15 (m, 2H), 7.12 (t, J = 8.8 Hz, 1H), 6.91 (s, 1H), 6.63 (s, 1H), 6.28- 6.10 (m, 2H), 5.75 (d, J = 10.5 Hz, 1H), 5.54 (dd, J = 8.7, 5.4 Hz, 1H), 4.25 (s, 1H), 3.99 (s, 3H), 3.81 (s, 3H), 3.22 (s, 3H), 2.84 (s, 8H), 2.78-2.70 (m, 3H), 2.31 (d, J = 15.1 Hz, 3H), 2.18 (s, 3H), 2.06 (d, J = 22.5 Hz, 3H),; 631,6[M + H]⁺ 1.38 745

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.05 (s, 1H), 8.92 (s, 1H), 8.25 (d, J = 11.3 Hz, 1H), 8.20 (S, 1H), 7.57- 7.47 (m, 1H), 7.43 (t, J = 7.3 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.84 (d, J = 8.6 Hz, 1H), 6.66 (dd, J = 17.1, 10.0 Hz, 1H), 6.37 (s, 1H), 6.24 (dd, J = 16.8, 2.0 Hz, 1H), 5.81-5.67 (m, 2H), 4.21 (q, J = 7.2, 6.8 Hz, 1H), 3.90 (d, J = 8.1 Hz, 2H), 3.83 (s, 3H), 3.36 (t, J = 5.6 Hz, 4H), 3.24- 3.07 (m, 8H), 2.86 (t, J = 11.7 Hz, 1H), 2.28-2.17 (m, 1H),; 610.5[M + H]⁺ 1.27 746

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.89 (s, 1H), 8.29 (s, 1H), 8.07 (s, 1H), 7.54 (td, J = 7.6, 1.7 Hz, 1H), 7.37 (t, J = 7.3 Hz, 1H), 7.24 (t, J = 7.9 Hz, 2H), 6.96 (s, 1H), 6.27- 6.18 (m, 2H), 5.75-5.67 (m, 2H), 4.31 (s, 2H), 4.05 (d, J = 8.2 Hz, 2H), 3.82 (s, 4H), 2.97 (d, J = 19.4 Hz, 1H), 2.72 (d, J = 4.8 Hz, 7H), 2.61 (s, 4H), 2.30 (tt, J = 13.1,6.1 Hz, 1H),; 570.5[M + H]⁺ 1.34 747

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.15 (s, 1H), 8.26 (d, J = 4.1 Hz, 1H), 7.99 (s, 1H), 7.54 (t, J = 7.6 Hz, 1H), 7.44-7.34 (m, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.89 (s, 1H), 6.67 (dd, J = 17.4, 9.9 Hz, 1H), 6.28-6.18 (m, 2H), 5.79-5.67 (m, 2H), 4.33- 4.22 (m, 1H), 4.01 (d, J = 9.9 Hz, 2H), 3.83-3.78 (m, 3H), 3.78- 3.70 (m, 4H), 3.21 (d, J = 12.0 Hz, 3H), 2.93 (d, J = 8.0 Hz, 2H), 2.86 (s, 3H), 2.83-2.71 (m, 4H), 2.28 (d, J = 12.7 Hz, 2H), 2.17 (s, 2H), 2.03 (s, 2H),;651.6[M + H]⁺ 1.24 748

N-(2-(4-((R)-3- (dimethylamino)pyrol- idine-1-y l) piperid ine-1- yl)-5-((6-(3-(3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.21 (s, 1H), 7.92 (s, 1H), 7.41 (td, J = 7.9, 5.7 Hz, 1H), 7.21 (d, J = 7.7 Hz, 1H), 7.17-6.97 (m, 3H), 6.68 (dd, J = 16.9, 10.1 Hz, 1H), 6.46 (d, J = 16.8 Hz, 1H), 6.02 (s, 1H), 5.88 (d, J = 10.3 Hz, 1H), 5.52 (s, 1H), 4.51- 4.39 (m, 1H), 4.21 (q, J = 7.7 Hz, 3H), 3.90 (s, 6H), 3.70-3.50 (m, 2H), 3.43 (s, 2H), 3.05 (s, 9H), 2.62- 2.11 (m, 6H), 1.31 (s, 1H),; 632.5[M + H]⁺ 1.07 749

N-(2-(4- (dimethylamino)-[1,4′- bipiperidine]-1′-yl)-5- ((6-((R)-3-(3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.13 (s, 1H), 7.80 (s, 1H), 7.40-7.19 (m, 1H), 7.19-6.84 (m, 4H), 6.68- 6.47 (m, 1H), 6.37 (d, J = 16.5 Hz, 1H), 6.10-5.83 (m, 1H), 5.83- 5.70 (m, 1H), 5.41 (s, 1H), 4.34 (d, J = 5.3 Hz, 1H), 4.11 (t, J = 7.6 Hz, 1H), 3.81 (s, 6H), 3.56-3.23 (m, 6H), 3.06-2.89 (m, 2H), 2.85 (s, 6H), 237 (d, J = 14.1 Hz, 4H), 2.20 (s, 4H), 1.33-1.13 (m, 2H),; 646.5[M + H]⁺ 1.06 750

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.11 (s, 1H), 7.79 (s, 1H), 7.39 (t, J = 7.9 Hz, 1H), 7.26-6.94 (m, 3H), 6.56 (dd, J = 16.9, 10.2 Hz, 1H), 6.35 (dd, J = 16.9, 1.6 Hz, 1H), 5.97 (s, 1H), 5.78 (dd, J = 10.1, 1.6 Hz, 1H), 5.41 (t, J = 7.2 Hz, 1H), 4.33 (td, J = 7.6, 4.1 Hz, 1H), 4.05 (ddd, J = 30.5, 10.7, 4.9 Hz, 3H), 3.81 (d, J = 6.0 Hz, 5H), 3.60-3.49 (m, 2H), 3.47-3.27 (m, 3H), 3.23 (d, J = 12.2 Hz, 2H), 3.15 (dd, J = 13.9, 5.1 Hz, 3H), 3.00- 2.85 (m, 1H), 2.45-2.21 (m, 3H), 2.18-1.99 (m, 2H),; 639.4 [M + H] 1.28 751

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4-(4- methylpiperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.22 (s, 1H), 7.93 (s, 1H), 7.50 (t, J = 7.9 Hz, 1H), 7.31 (dd, J = 10.0, 2.0 Hz, 1H), 7.23 (dd, J = 8.3, 2.0 Hz, 1H), 7.13 (s, 1H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.46 (dd, J = 16.9, 1.6 Hz, 1H), 6.08 (s, 1H), 5.88 (dd, J = 10.2, 1.6 Hz, 1H), 5.54 (t, J = 7.3 Hz, 1H), 4.44 (td, J = 7.6, 4.1 Hz,1 H), 4.20 (td, J = 8.3, 6.5 Hz, 1H), 4.16-3.55 (m, 12H), 3.54-3.39 (m, 2H), 3.32- 3.11 (m, 3H), 3.08 (s, 4H), 2.56- 2.37 (m, 3H), 2.35-2.20 (m, 2H),; 652.4 [M + H]⁺ 1.23 752

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((2S,6S)-2,6- dimethylmorpholino)p iperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.30 (s, 1H), 8.18(S, 1H), 7.11-7.04 (m, 2H), 6.92 (s, 1H), 6.89-6.79 (m, 1H), 6.59-6.50 (m, 1H), 6.45 (s, 1H), 6.41-6.30 (m, 1H), 5.82 (d, J = 10.3 Hz, 1H), 5.61-5.51 (m, 1H), 4.19-4.04 (m, 4H), 3.98 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.20-3.10 (m, 3H), 2.84-2.72 (m, 5H), 2.50-2.43 (m, 3H), 2.38-2.28 (m, 1H), 1.84- 1.73 (m, 2H), 1.29 (s, 3H), 1.28 (s, 3H); 650.3 [M + H]⁺ 1.28 753

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4-(2- (dimethylamino)ethyl) piperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) 5 8.17 (s, 1H), 8.09-8.03 (m, 1H), 6.98-6.91 (m, 2H), 6.82-6.77 (m, 1H), 6.75-6.68 (m, 1H), 6.50-6.37 (m, 1H), 6.34 (s, 1H), 6.30-6.20 (m, 1H), 5.69 (d, J = 10.3 Hz, 1H), 5.50- 5.41 (m, 1H), 4.06-4.01 (m, 1H), 3.90-3.81 (m, 2H), 3.77 (s, 3H), 3.15-3.09 (m, 3H), 3.09-3.00 (m, 6H), 2.99-2.93 (m, 2H), 2.73-2.70 (m, 8H), 2.68-2.53 (m, 9H), 2.25- 2.20 (m, 1H), 2.03-1.95 (m, 2H); 692.4 [M + H]⁺ 1.13 754

N-(5-((6-((R)-3-(3,5- difluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-(piperazine-1- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.17 (s, OH), 8.08-8.04 (m, 1H), 6.98-6.90 (m, 2H), 6.81-6.68 (m, 2H), 6.47-6.37 (m, 1H), 6.37-6.30 (m, 1H), 6.28-6.19 (m, 1H), 5.74- 5.61 (m, 1H), 5.48-5.43 (m, 1H), 4.05-4.00 (m, 1H), 3.88-3.81 (m, 1H), 3.76 (s, 3H), 3.18-2.96 (m, 5H), 2.81-2.56(m, 10H), 2.50- 2.39 (m, 1H), 2.29-2.16 (m, 1H), 1.73-1.62 (m, 2H); 621.3 [M + H]⁺ 1.09 755

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino) piperidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.32 (s, 1H), 8.18 (d, J = 0.8 Hz, 1H), 7.57 (dd, J = 7.1, 2.1 Hz, 1H), 7.41 (ddd, J = 8.4, 4.5, 2.2 Hz, 1H), 7.23 (t, J = 8.9 Hz, 1H), 6.92 (s, 1H), 6.58 (dd, J = 16.9, 10.3 Hz, 1H), 6.46 (d,J = 0.8 Hz, 1H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 5.81 (dd, J = 10.3, 1.3 Hz, 1H), 5.55 (dd, J = 8.5, 4.7 Hz, 1H), 4.16 (td, J = 7.8, 4.2 Hz, 1H), 3.98 (q, 8.0 Hz, 1H), 3.88 (s, 3H), 3.19-3.09 (m, 2H), 2.88-2.73 (m, 3H), 2.43-2.27 (m, 8H), 2.05 (d, J = 10.7 Hz, 2H), 1.75 (dt, J = 11.8, 8.3 Hz, 2H),; 596.4 [M + H]⁺ 1.27 756

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)- 3-(dimethylamino) pyrolidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.14 (s, 1H), 7.68 (s, 1H), 7.56 (dd, J = 7.2, 2.1 Hz, 1H), 7.44-7.37 (m, 1H), 7.22 (t, J = 8.9 Hz, 1H), 6.67 (s, 1H), 6.54 (dd, J = 17.0, 10.2 Hz, 1H), 6.42-6.30 (m, 2H), 5.79 (dd, J = 10.2, 1.6 Hz, 1H), 5.53 (dd, J = 8.5, 4.5 Hz, 1H), 4.14(td, J = 7.8, 4.2 Hz, 1H), 3.95 (q, J = 7.9 Hz, 1H), 3.88 (s, 3H), 3.26 (m, J = 9.3 Hz, 3H), 2.95-2.86 (m, 1H), 2.86-2.75 (m, 1H), 2.39-2.16 (m, 9H), 1.97-1.84 (m, 1H),; 582.4 [M + H]⁺ 1.25 757

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((S)-2- methylmorpholin o)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.44 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.07-6.89 (m, 3H), 6.75 (s, 1H), 6.73-6.63 (m, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.75 (dd, J = 10.0, 1.5 Hz, 1H), 5.66 (dd, J = 8.8, 4.6 Hz, 1H), 4.15 (td, J = 8.1, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.97- 3.88 (m, 1H), 3.85 (s, 3H), 3.77-3.63 (m, 2H), 3.07 (d, J = 11.4 Hz, 2H), 2.91 (d, J = 11.1 Hz, 1H), 2.85 (d,J = 11.2 Hz, 1H), 2.82-2.73 (m, 2H), 2.73-2.67 (m, 1H) 2.40-2.25 (m, 3H), 2.12-2.02 (m, 2H), 1.97 (t, J = 10.5 Hz, 1H), 1.70-1.65 (m, 2H), 1.19 (d, J = 6.3 Hz, 3H),; 636.5 [M + H]* 1.23 758

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((R)-2- methylmorpholin o)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H)8.44 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.06-6.98 (m, 2H), 6.96 (s, 1H), 6.75 (s, 1H), 6.73-6.63 (m, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 5.67 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.93 (dd, J = 11.4, 3.4, 1.5 Hz, 1H), 3.85 (s, 3H), 3.76-3.60 (m, 2H), 3.11-3.02 (m, 2H), 2.94-2.66 (m, 5H), 2.40-2.24 (m, 3H), 2.08 (d, J = 12.3 Hz, 2H), 1.97 (t, J = 10.5 Hz, 1H), 1.68-1.63 (m, 2H), 1.19 (d, J = 6.2 Hz, 3H),; 636.5 [M + H]⁺ 1.20 759

N-(2-(4-((1R,5S)- 8-oxa-3- azabicyclo[3.2.1]o ctan-3- yl)piperidine-1-yl)- 5-((6-((R)-3-(3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.06-6.97 (m, 2H), 6.96 (s, 1H), 6.75 (s, 1H), 6.72-6.63 (m, 2H), 6.38 (dd, J = 16.9, 1.7 Hz, 1H), 6.28 (dd, J = 16.9, 9.9 Hz, 1H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 5.67 (dd, J = , 8.7, 4.5 Hz, 1H), 4.33 (dt, J = 4.5, 2.3 Hz, 2H), 4.20- 4.10 (m, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.09-2.98 (m, 2H), 2.82- 2.65 (m, 5H), 2.48 (dd, J = 10.9, 2.2 Hz, 2H), 2.40-2.21 (m, 2H), 1.96-1.93 (m, 2H), 1.91-1.84 (m, 2H), 1.77-1.68 (m, 1H), 1.67-1.55 (m, 3H), 1.55-1.47 (m, 1H),; 648.5 [M + H]⁺ 1.15 760

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-3,4- dimethylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.06-6.98 (m, 2H), 6.96 (s, 1H), 6.75 (s, 1H), 6.73-6.61 (m, 2H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 5.66 (dd, J = 8.7, 4.6 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.06 (d, J = 10.4 Hz, 2H), 3.01-2.96 (m, 1H), 2.94-2.84 (m, 2H), 2.82-2.68 (m, 3H), 2.44-2.34 (m, 3H), 2.32 (s, 3H), 2.31- 2.27 (m, 1H), 2.13-2.00 (m, 4H), 1.74- 1.59 (m, 2H), 1.11 (d, J = 6.2 Hz, 3H),; 649.5 [M + H]⁺ 1.15 761

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-2,4- dimethylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.04-6.98 (m, 2H), 6.96 (s, 1H), 6.76 (s, 1H), 6.74-6.63 (m, 2H), 6.37 (dd, J = 16.9, 1.7 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.75 (dd, J = 9.9, 1.7 Hz, 1H), 5.67 (dd, J = 8.8, 4.6 Hz, 1H), 4.15 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.07 (dt, J = 11.3, 5.1 Hz, 2H), 2.99-2.84 (m, 3H), 2.83-2.59 (m, 6H), 2.40-2.30 (m, 2H), 2.30 (s, 3H), 2.09-2.03 (m, 1H), 1.95- 1.80 (m, 3H), 1.63 (qd, J = 12.0, 3.9 Hz, 1H), 1.11 (d, J = 6.3 Hz, 3H),; 649.5 [M + H]⁺ 1.15 762

N-(5-((6-((R)-3- (3,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((S)-2,4- dimethylpiperazine- 1-yl)piperidine-1- yl)-4- methoxyphenyl)ac rylamide ′H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.06-6.96 (m, 2H), 6.94 (s, 1H), 6.76 (s, 1H), 6.76-6.63 (m, 2H), 6.37 (dd, J = 16.9, 1.6 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 5.67 (dd, J = 8.8, 4.5 Hz, 1H), 4.15 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.07 (d, J = 11.5 Hz, 2H), 2.99-2.84 (m, 3H), 2.84- 2.73 (m, 3H), 2.73-2.60 (m, 3H), 2.40- 2.31 (m, 2H), 2.30 (s, 3H), 2.10-2.06 (m, 1H), 1.89 (dd, J = 22.0, 9.7 Hz, 3H), 1.63 (q, J = 12.2, 11.7 Hz, 1H), 1.12 (d, J = 6.3 Hz, 3H),; 649.5 [M + H]⁺ 1.16 763

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine-1- yl)-5-((6-((R)-3-(3- chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)ac rylamide ′H NMR (400 MHz, DMSO-d₆) δ 10.26 (s, 1H), 9.27 (s, 1H), 8.33 (s, 1H), 7.86 (s, 1H), 7.58 (dd, J = 7.1,2.1 Hz, 1H), 7.42 (t, J = 8.8 Hz, 1H), 7.40-7.35 (m, 1H), 6.90 (d, J = 11.0 Hz, 1H), 6.72 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 1H), 6.11 (s, 1H), 5.79-5.71 (m, 1H), 5.54 (dd, J = 8.5, 5.5 Hz, 2H), 3.89 (t, J = 6.1 Hz, 1H), 3.80 (d, J = 2.6 Hz, 4H), 3.56 (s, 6H), 3.48 (s, 3H), 3.36 (dd, J = 16.4, 10.4 Hz, 2H), 3.20 (d, J = 28.8 Hz, 5H), 3.04-2.87 (m, 4H), 2.81 (s, 3H), 2.39-2.27 (m, 2H), 2.06 (s, 4H),; 679.5 [M + H]⁺ 1.25 764

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino)py rolidine-1- yl)piperidine-1-yl)- 4-methoxyphenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.12 (s, 1H), 9.31 (s, 1H), 8.32 (s, 1H), 7.86 (s, 1H), 7.58 (dd, J = 7.1,2.2 HZ, 1H), 7.47- 7.34 (m, 3H), 6.96 (s, 1H), 6.67 (dd, J = 16.7, 10.6 Hz, 1H), 6.24 (dd, J = 17.1, 1.9 Hz, 1H), 6.10 (d, J = 9.8 Hz, 1H), 5.75 (dd, J = 7.7, 3.8 Hz, 1H), 5.53 (dd, J = 8.5, 5.5 Hz, 2H), 4.02 (dq, J = 18.8, 10.0, 8.8 Hz, 6H), 3.81 (s, 5H), 3.56 (s, 5H), 3.25 (s, 6H), 3.17-3.06 (m, 2H), 2.92 (t J = 6.4 Hz, 2H), 2.89-2.69 (m, 9H), 2.47- 2.26 (m, 3H), 2.27-2.02 (m, 5H),; 665.6 [M + H]⁺ 1.13 765

N-(5-((6-((R)-3- (2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4-(4- methylpiperazine- 1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.38 (s, 1H), 9.29 (s, 1H), 8.34 (s, 1H), 7.32 (td, J = 9.3, 4.5 Hz, 1H), 7.26-7.10 (m, 3H), 6.93 (s, 1H), 6.74 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.16 (s, 1H), 5.79-5.71 (m, 1H), 5.66 (dd, J = 8.7, 5.6 Hz, 2H), 4.07 (q, J = 7.8 Hz, 2H), 3.81 (d, J = 2.5 Hz, 5H), 3.45 (s, 2H), 3.35-3.14 (m, 4H), 2.95 (dq, J = 12.0, 6.0 Hz, 3H), 2.84 (s, 6H), 2.71 (d, J = 4.9 Hz, 1H), 2.36-2.09 (m, 6H), 1.35-1.24 (m, 3H),; 635.5 [M + H]⁺ 1.33 766

N-(5-((6-((R)-3- (2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine-1- yl)phenyl)acrylamide 622.5 [M + H]⁺ 1.36 767

N-(5-((6-((R)-3- (2,5- difluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-(4- ethylpiperazine-1- yl)piperidine-1-yl)- 4-methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.79 (s, 1H), 8.41 (d, J = 9.9 Hz, 2H), 8.32 (d, J = 1.2 Hz, 2H), 7.40 (s, 2H), 7.30 (ddd, J = 9.3, 5.8, 3.3 Hz, 2H), 6.99 (td, J = 9.2, 4.3 Hz, 2H), 6.89 (ddd, J = 8.7, 6.3, 3.6 Hz, 2H), 6.26 (dd, J = 16.9, 9.8 Hz, 1H), 5.74 (dt, J = 9.9, 1.9 Hz, 1H), 4.07-3.99 (m, 2H), 3.84 (d, J = 1.5 Hz, 5H), 3.42 (s, 3H), 3.08 (dd, J = 15.5, 10.3 Hz, 5H), 2.80- 2.62 (m, 10H), 2.55 (d, J = 3.3 Hz, 3H), 2.44 (s, 2H), 2.29 (ddd, J = 12.3, 9.8, 3.9 Hz, 2H), 2.03 (s, 12H), 1.70 (q, J = 10.8, 10.3 Hz, 3H),; 649.5 [M + H]⁺ 1.36 768

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- [1,4′-bipiperidine]- 1′-yl)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.16 (s, 1H), 8.05 (s, 1H), 7.47-7.41 (m, 1H), 7.33- 7.25 (m, 1H), 7.16-7.05 (m, 1H), 6.80 (s, 1H), 6.50-6.37 (m, 1H), 6.36-6.30 (m, 1H), 6.30-6.19 (m, 1H), 5.73-5.64 (m, 1H), 5.47-5.39 (m, 1H), 4.06-4.00 (m, 1H), 3.89-3.82 (m, 1H), 3.76 (s, 3H), 3.13- 3.08 (m, 3H), 3.08-2.99 (m, 6H), 2.95- 2.88 (m, 2H), 2.75-2.64 (m, 8H), 2.43- 2.37 (m, 1H), 2.26-2.18 (m, 1H), 1.98- 1.91 (m, 2H), 1.80-1.70 (m, 3H); 679.3 [M + H]⁺ 1.33 769

N-(5-((6-((R)-3-(3- chloro-4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-3- (dimethylamino)py rolidine-1- yl)piperidine-1-yl)- 4-methoxyphenyl)ac rylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.16 (s, 1H), 8.06 (s, 1H), 7.48-7.40 (m, 1H), 7.31- 7.25 (m, 1H), 7.14-7.04 (m, 1H), 6.80 (s, 1H), 6.51-6.38 (m, 1H), 6.33 (s, 1H), 6.31- 6.18 (m, 1H), 5.74-5.63 (m, 1H), 5.48- 5.36 (m, 1H), 4.07-4.01 (m, 1H), 3.89- 3.81 (m, 1H), 3.77 (s, 3H), 3.11 (s, 1H), 3.05-3.00 (m, 3H), 2.93-2.85 (m, 2H), 2.77-2.64 (m, 5H), 2.45 (s, 6H), 2.27- 2.10 (m, 3H), 2.05-1.98 (m, 2H), 1.73- 1.64 (m, 2H); 665.3 [M + H]+ 1.33 770

N-(2-(4-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1]h eptane-5- yl)piperidine-1-yl)- 5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.73 (s, 1H), 9.24 (d, J = 31.7 Hz, 1H), 8.28 (s, 1H), 7.93 (d, J = 12.1 Hz, 1H), 7.53 (dd, J = 8.7, 1.5 Hz, 1H), 7.41 (t, J = 8.1 Hz, 1H), 6.90 (d, J = 7.6 Hz, 1H), 6.58 (dd, J = 17.4, 10.3 Hz, 1H), 6.27-6.19 (m, 2H), 5.79-5.65 (m, 2H), 4.74-4.53 (m, 3H), 4.29 (d, J = 4.6 Hz, 1H), 4.20 (d, J = 10.3 Hz, 1H), 4.01 (d, J = 7.9 Hz, 1H), 3.82 (d, J = 1.7 Hz, 3H), 3.69 (s, 2H), 3.47 (d, J = 8.6 Hz, 2H), 3.38 (d, J = 6.0 Hz, 1H), 3.22 (d, J = 10.8 Hz, 2H), 2.92-2.72 (m, 3H), 2.31 (d, J = 11.5 Hz, 2H), 2.08 (d, J = 10.5 HZ, 3H),; 684.2 [M + H]⁺ 1.54 771

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4-((R)-3- (dimethylamino)pyrolidine- 1-y l) piperi d ine-1-y l)-4- methoxyphenyl)acrylamide 699.5 [M + H]⁺ 1.47 772

N-(5-((6-((R)-3-(3_(s)4-dichloro-2- fluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4-((S)-3- (dimethylamino)pyrolidine- 1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 699.3 [M + H]⁺ 1.49 773

N-(5-((6-((R)-3-(3,4- dichloro-2- fluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-2-(4-((2S,6R)- 2,6- dimethylmorpholino)piperi dine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.61 (s, 1H), 9.13 (s, 1H), 8.27 (s, 1H), 7.97 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.41 (t, J = 8.1 Hz, 1H), 6.90 (s, 1H), 6.66 (dd, J = 17.0, 10.3 Hz, 1H), 6.29- 6.17 (m, 2H), 5.78-5.64 (m, 2H), 4.28 (d, J = 4.3 Hz, 1H), 4.11 (s, 2H), 4.00 (d, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.48 (s, 2H), 3.21 (d, J = 11.6 Hz, 3H), 2.95- 2.88 (m, 1H), 2.72 (dd, J = 22.5, 11.6 Hz, 4H), 2.33-2.27 (m, 1H), 2.22 (d, J = 11.7 Hz, 2H), 2.03 (d, J = 11.5 Hz, 2H), 1.17 (d,J = 6.2 Hz, 6H),; 700.5 [M + H] 1.62 774

N-(2-(4-(4- acetylpiperazine-1- y l)piperid ine-1-y l)-5-((6- ((R)-3-(3,4-dichloro-2- fluorophenyl)isoxazolidine- 2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 713.3 [M + H]⁺ 1.54 775

N-(4-methoxy-5- ((6-((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.28 (s, 1H), 8.14 (s, 1H), 7.24 (t, J = 8.0 Hz, 1H), 6.99 (dd, J = 5.0, 3.0 Hz, 2H), 6.89 (s, 1H), 6.82-6.78 (m, 1H), 6.55 (dd, J = 17.0, 10.3 Hz, 1H), 6.40-6.32 (m, 2H), 5.79 (dd, J = 10.3, 1.5 Hz, 1H), 5.48 (dd, J = 8.5, 4.7 Hz, 1H), 4.13 (td, J = 7.8, 4.4 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.85 (s, 3H), 3.79 (d, J = 4.7 Hz, 7H), 3.17-3.11 (m, 2H), 2.82-2.74 (m, 7H), 2.56 (tt, J = 11.6, 4.0 Hz, 1H), 2.37-2.28 (m, 1H), 2.12-2.06 (m, 2H), 1.80-1.74 (m, 2H); 616.5 [M + H]⁺ 1.03 776

N-(2-((R)-3- (dimethylamino)pyr olidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.11 (s, 1H), 7.70 (s, 1H), 7.24 (t, J = 8.0 Hz, 1H), 6.99 (dd, J = 5.0, 3.0 Hz, 2H), 6.83- 6.78 (m, 1H), 6.68 (s, 1H), 6.52 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (dd, J = 17.1, 1.7 Hz, 1H), 6.30 (s, 1H), 5.79 (dd, J = 10.1, 1.7 Hz, 1H), 5.50-5.46 (m, 1H), 4.12 (td, J = 7.8, 4.4 Hz, 1H), 3.93 (q, J = 7.9 Hz, 1H), 3.86 (s, 3H), 3.78 (s, 3H), 3.42-3.32 (m, 5H), 2.81-2.73 (m, 1H), 2.59 (s, 6H), 2.37-2.28 (m, 2H), 2.07-2.01 (m, 1H),; 560.5 [M + H]⁺ 1.00 777

N-(4-methoxy-5- ((6-((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((R)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ′H NMR (400 MHz, Methanol-d₄) δ 8.10 (s, 1H), 7.64 (s, 1H), 7.24 (t, J = 8.0 Hz, 1H), 6.99 (dd, J = 5.1, 3.1 Hz, 2H), 6.82- 6.78 (m, 1H), 6.64 (s, 1H), 6.52 (dd, J = 17.0, 10.2 Hz, 1H), 6.34 (dd, J = 17.0, 1.7 Hz, 1H), 6.27 (s, 1H), 5.77 (dd, J = 10.3, 1.7 Hz, 1H), 5.49-5.45 (m, 1H), 4.11 (td, j = 7.8, 4.4 Hz, 1H), 3.93 (q, J = 7.9 Hz, 1H), 3.84 (s, 3H), 3.78 (s, 3H), 3.74 (t, J = 4.8 Hz, 4H), 3.39-3.32 (m, 2H), 3.30- 3.26 (m, 2H), 2.98 (p, J = 7.3 Hz, 1H), 2.76 (tq, J = 8.0, 4.5, 4.0 Hz, 1H), 2.64 (dt, J = 10.2, 4.8 Hz, 2H), 2.55 (dt, J = 11.8, 5.1 Hz, 2H), 2.32 (ddt, J = 11.6, 7.7, 3.9 Hz, 1H), 2.23 (dtd, J = 13.8, 6.7, 2.7 Hz, 1H), 1.94-1.86 (m, 1H); 602.5 [M + H]⁺ 1.06 778

N-(4-methoxy-5- ((6-((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)-3- morpholinopyrolidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.10 (s, 1H), 7.63 (s, 1H), 7.24 (t, J = 8.1 Hz, 1H), 7.02-6.95 (m, 2H), 6.82-6.78 (m, 1H), 6.64 (s, 1H), 6.52 (dd, J = 17.0, 10.2 Hz, 1H), 6.39-6.21 (m, 2H), 5.78 (dd, J = 10.2, 1.7 Hz, 1H), 5.46 (dd, J = 8.5, 4.7 Hz, 1H), 4.11 (td, J = 7.8, 4.4 Hz, 1H), 3.92 (q, J = 7.8 Hz, 1H), 3.84 (s, 3H), 3.78 (s, 3H), 3.74 (t, J = 4.8 Hz, 4H), 3.36- 3.32 (m, 2H), 3:27 (dt, J = 9.3, 4.4 Hz, 2H), 3.00 (p, J = 7.2 Hz, 1H), 2.76 (ddt, J = 12.3, 8.0, 3.9 Hz, 1H), 2.66 (dt, J = 9.7, 4.6 Hz, 2H), 2.56 (dt, J = 11.3, 4.8 Hz, 2H), 2.32 (ddt, J = 11.7, 7.8, 3.9 Hz, 1H), 2.23 (dtd, J = 13.7, 6.8, 2.9 Hz, 1H), 1.94-1.87 (m, 1H); 602.5 [M + H]⁺ 1.02 779

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.27 (s, 1H), 8.14 (s, 1H), 7.24 (t, J = 8.1 Hz, 1H), 6.99 (dd, J = 5.0, 2.9 Hz, 2H), 6.89 (s, 1H), 6.83-6.78 (m, 1H), 6.54 (dd, J = 17.0, 10.3 Hz, 1H), 6.41-6.30 (m, 2H), 5.79 (d, J = 10.3 Hz, 1H), 5.51-5.45 (m, 1H), 4.13 (td, J = 7.8, 4.3 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.85 (s, 3H), 3.78 (s, 3H), 3.63 (dt, J = 15.5, 5.3 Hz, 4H), 3.13 (d, J = 11.3 Hz, 2H), 2.83-2.72 (m, 5H), 2.69 (t, J = 5.2 Hz, 2H), 2.53 (tt, J = 11.5, 3.9 Hz, 1H), 2.38-2.28 (m, 1H), 2.11 (s, 3H), 2.06-2.00 (m, 2H), 1.83-1.73 (m, 2H); 657.6 [M + H]⁺ 1.12 780

N-(2-(4-(4- isopropylpiperazine- 1-yl)piperidine-1-yl)- 4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 657.6 [M + H]⁺ 1.12 781

N-(2-(4- (dimethylamino)- [1,4′-bipiperidine]-T- yl)-4-methoxy-5-((6- ((R)-3-(3- methoxyphenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide 657.7 [M + H]⁺ 1.04 782

N-(5-((6-((R)-3-(4- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide 620.5 [M + H]⁺ 1.38 783

N-(5-((6-((R)-3-(4- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((R)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- 647.6 [M + H]⁺ 1.12 784

N-(5-((6-((R)-3-(4- chlorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4-((S)- 3-(dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxyphenyljacrylamide 647.6 [M + H]⁺ 1.13 785

N-(5-((6-((R)-3-(4- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.41 (s, 1H), 9.11 (s, 1H), 8.25 (s, 1H), 8.13 (s, 1H), 7.42 (dd, J = 8.6, 5.6 Hz, 2H), 7.19 (t, J = 8.8 Hz, 2H), 6.87 (s, 1H), 6.74 (dd, J = 17.0, 10.3 Hz, 1H), 6.28- 6.15 (m, 2H), 5.76 (dd, J = 10.3, 2.0 Hz, 1H), 5.52 (dd, J = 8.6, 5.2 Hz, 1H), 4.25- 4.21 (m, 1H), 3.97 (d, J = 7.8 Hz, 1H), 3.82 (s, 3H), 3.33 (d, J = 10.5 Hz, 3H), 3.18 (d, J = 5.9 Hz, 4H), 2.87 (d, J = 14.9 Hz, 1H), 2.83 (d, J = 4.7 Hz, 3H), 2.34-2.24 (m, 2H),; 534.4 [M + H]⁺ 1.28 786

N-(5-((6-((R)-3-(4- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide 604.5 [M + H]⁺ 1.3 787

N-(2-(4-((R)-3- (dimethylamino)pyrolidine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((R)- 3-phenylisoxazolidine- 2-yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.71 (s, 1H), 9.23 (s, 1H), 8.27 (s, 1H), 7.90 (s, 1H), 7.37 (m, 4H), 7.29 (td, J = 5.3, 3.0 Hz, 1H), 6.91 (m, 1H), 6.64 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 17.1, 1.9 Hz, 1H), 6.07 (s, 1H), 5.82-5.70 (m, 1H), 5.51 (d, J = 9.1 Hz, 1H), 4.29 (m, 2H), 4.03 (m, 4H), 3.80 (s, 3H), 3.23 (m, 3H), 2.95-2.69 (m, 12H), 2.36-2.26 (m, 1H), 2.18(m, 2H), 2.06 (m, 2H),; 613.6 [M + H]⁺ 1.00 788

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- morpholinopiperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.20 (s, 1H), 8.29 (d, J = 4.6 Hz, 1H), 7.92 (s, 1H), 7.55 (t, J = 7.5 Hz, 1H), 7.36 (t, J = 7.3 Hz, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.91 (s, 1H), 6.67 (dd, J = 17.3, 10.5 Hz, 1H), 6.25 (d, J = 16.6 Hz, 1H), 6.17 (s, 1H), 5.81-5.66 (m, 2H), 4.31 (t, J = 6.0 Hz, 1H), 4.04 (dt, J = 10.7, 5.9 Hz, 1H), 4.01-3.90 (m, 4H), 3.81 (s, 3H), 3.22 (d, J = 11.4 Hz, 3H), 3.18-3.10 (m, 3H), 3.01-2.90 (m, 2H), 2.78 (t, J = 12.0 Hz, 2H), 2.30 (dt, J = 12.9, 6.5 Hz, 1H), 2.21 (d, J = 11.7 Hz, 3H), 2.05 (t, J = 12.4 Hz, 2H),; 638.5 [M + H]⁺ 1.28 789

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4-methylpiperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.15 (d, J = 11.3 Hz, 1H), 8.26 (q, J = 5.7 Hz, 1H), 7.58-7.50 (m, 1H), 7.42-7.34 (m, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.86 (d, J = 15.2 Hz, 1H), 6.29-6.18 (m, 2H), 5.74 (dt, J = 13.0, 5.2 Hz, 2H), 4.32-4.23 (m, 1H), 4.00 (d, J = 7.6 Hz, 2H), 3.83 (d, J = 2.7 Hz, 3H), 3.80-3.71 (m, 4H), 3.31 (d, J = 12.4 Hz, 1H), 3.19 (dd,J = 10.3, 6.1 Hz, 4H), 3.16- 3.07 (m, 3H), 2.82 (d, J = 4.6 Hz, 2H), 2.27 (s, 1H),; 568.5 [M + H]⁺ 1.41 790

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piperidine-1-yl)-4- methoxyphenyl)acrylamide ; 596.5 [M + H]⁺ 1.41 791

N-(5-((6-((R)-3-(3- chloro-2- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.57 (d, J = 11.0 Hz, 1H), 8.25 (d, J = 5.0 Hz, 1H), 7,54 (t, J = 7.9 Hz, 1H), 7.38 (d, J = 8.0 Hz, 1H), 7.24 (t, J = 7.9 Hz, 1H), 6.82 (t, J = 8.8 Hz, 1H), 6.66 (d, J = 20.8 Hz, 1H), 6.23 (ddd, J = 16.5, 14.4, 2.0 Hz, 1H), 6.08 (dd, J = 17.3, 10.2 Hz, 1H), 5.78-5.67 (m, 2H), 4.34-4.22 (m, 1H), 4.06-3.93 (m, 1H), 3.81 (d, J = 3.4 Hz, 3H), 3.75 (q, J = 6.1 Hz, 1H), 3.61 (td, J = 6.6, 3.9 Hz, 3H), 3.16-3.10 (m, 4H), 2.80 (dd, J = 8.1,4.6 Hz, 6H), 2.73 (dd, J = 6.0, 3.8 Hz, 1H), 2.34-2.23 (m, 2H),; 596.5 [M + H]⁺ 1.39 792

N-(5-((6-((R)-3-(3- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-4-methoxy′ 2-(4-(oxetane-3- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) 5 10.64 (s, 1H), 9.68 (s, 1H), 9.16 (d, J = 19.0 Hz, 1H), 8.29 (s, 1H), 8.06 (s, 1H), 7.42 (td, J = 7.9, 6.1 Hz, 1H), 7.20 (t, J = 10.1 Hz, 2H), 7.17-7.08 (m, 1H), 6.88 (s, 1H), 6.67 (dd, J 16.9, 10.0 Hz, 1H), 6.25 (dd, J = 17.0, 2.3 Hz, 1H), 5.81-5.69 (m, 1H), 5.53 (t, J = 7.0 Hz, 1H), 4.81 (d, J = 6.5 Hz, 3H), 4.66 (t, J = 5.3 Hz, 2H), 4.52 (s, 1H), 4.28 (s, 1H), 4.02 (s, 1H), 3.82 (d, J = 2.3 Hz, 3H), 3.57 (d, J = 24.1 Hz, 3H), 3.36 (s, 1H), 3.24 (s,3H), 3.12 (d, J = 11.4 Hz, 1H), 2.91 (S, 1H),; 576.5 [M + H]⁺ 1.29 793

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazoli- dine-2-yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino)ethyl) (methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.09 (s, 1H), 7.57 (s, 1H), 7.38 (t, J = 7.9 Hz, 1H), 7.18 (dd, J = 10.1,2.0 Hz, 1H), 7.10 (dd, J = 8.3, 2.0 Hz, 1H), 6.92 (s, 1H), 6.71 (dd, J = 16.9, 10.2 Hz, 1H), 6.32 (dd, J = 16.9, 1.6 Hz, 1H), 5.97 (s, 1H), 5.73 (dd, J = 10.3, 1.6 Hz, 1H), 5.44 (t, J = 7.1 Hz, 1H), 4.32 (td, J = 7.5, 3.9 Hz, 1H), 4.07 (q, J = 7.7 Hz, 1H), 3.80 (s, 3H), 3,44 (t, J = 5.7 Hz, 2H), 3.27 (t, J = 5.6 Hz, 2H), 3.20 (s, 1H), 2.94 (q, J = 8.9, 7.3 Hz, 1H), 2.85-2.73 (m, 6H), 2.67 (s, 3H), 2.41-2.28 (m, 1H),; 571.3 [M + H]⁺ 1.31 794

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-2-((R)-3- (dimethylamino)pyrol- idine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.04 (s, 1H), 7.45-7.27 (m, 2H), 7.17 (dd, J = 10.1, 2.1 Hz, 1H), 7.09 (dd, J = 8.3, 2.0 Hz, 1H), 6.65 (s, 1H), 6.60 (dd, J = 17.0, 10.3 Hz, 1H), 6.28 (dd, J = 17.0, 1.7 Hz, 1H), 5.95 (s, 1H), 5.72 (dd, J = 10.3, 1.7 Hz, 1H), 5.43 (d, J = 7.3 Hz, 1H), 4.30 (td, J = 7.6, 4.2 Hz, 1H), 4.06 (td, J = 8.2, 6.6 Hz, 1H), 3.91 (q, J = 6.5 Hz, 1H), 3.77 (s, 3H), 3.59 (dd, J = 10.9, 4.8 Hz, 1H), 3.54-3.43 (m, 2H), 3.20 (s, 1H), 3.19-3.13 (m, 1H), 2.97-2.90 (m, 1H), 2.86 (d, J = 10.8 Hz, 6H), 2.47-2.30 (m, 2H), 2.22 (dd, J = 13.9, 6.7 Hz, 1H),; 583.4 [M + H]⁺ 1.24 795

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- 2-(4- methylpiperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.08 (s, 1H), 7.87 (s, 1H), 7.38 (t, J = 7.9 Hz, 1H), 7.18 (dd, J = 10.1,2.0 Hz, 1H), 7.10 (dd, J = 8.3, 2.0 Hz, 1H), 6.91 (s, 1H), 6.59 (dd, J = 16.9, 10.2 Hz, 1H), 6.30 (dd, J = 17.0, 1.6 Hz, 1H), 5.95 (s, 1H), 5.73 (dd, J = 10.2, 1.6 Hz, 1H), 5.42 (d, J = 7.7 Hz, 1H), 4.31 (td, J = 7.6, 4.1 Hz, 1H), 4.07 (q, J = 7.9 Hz, 1H), 3.78 (s, 3H), 3.53 (d, J = 11.9 Hz, 2H), 3.42-3.31 (m, 2H), 3.22- 3.17 (m, 6H), 2.90 (s, 3H), 2.41-2.29 (m, 1H),; 568.3 [M + H]⁺ 1.27 796

N-(2-(4-(4- acetylpiperazine-1- yl)piperidine-1-yl)-5- ((6-((R)-3-(4-chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.20 (s, 1H), 8.06 (s, 1H), 7.33 (t, J = 8.0 Hz, 1H), 7.22 (dd, J = 10.5, 2.0 Hz, 1H), 7.15 (dd, J = 8.5, 2.0 Hz, 1H), 6.80 (s, 1H), 6.44 (dd, J = 17.0, 10.3 Hz, 1H), 6.34 (s, 1H), 6.24 (dd, J = 17.0, 1,6 Hz, 1H), 5.69 (dd, J = 10.2, 1.6 Hz, 1H), 5.44 (dd, J = 8.7, 4.7 Hz, 1H), 4.10-3.98 (m, 1H), 3.86 (d, J = 8.0 Hz, 1H), 3.76 (s, 3H), 3.50 (dt, J = 16.1, 5.4 Hz, 4H), 3.03 (d, J = 11.4 Hz, 2H), 2.76-2.61 (m, 3H), 2.60-2.45 (m,4H), 2.35 (s, 1H), 2.28-2.13 (m, 1H), 2.01 (s, 3H), 1.91 (d, J = 11:7 Hz, 2H), 1.74-1.60 (m, 2H),; 679.4 [M + H]⁺ 1.28 797

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)piperi dine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.24 (s, 1H), 7.92 (s, 1H), 7.51 (t, J = 7.9 Hz, 1H), 7.31 (dd, J = 10.0, 2.0 Hz, 1H), 7.26-7.05 (m, 2H), 6.70 (dd, J = 17.0, 10.2 Hz, 1H), 6.47 (dd, J = 16.8, 1.5 Hz, 1H), 6.10 (s, 1H), 5.99-5.80 (m, 1H), 5.54 (t, J = 7.1 Hz, 1H), 4.45 (td, J = 7.5, 3.9 Hz, 1H), 4.20 (q, J = 7.7 Hz, 1H), 3.93 (s, 3H), 3.75 (p, J = 6.6 Hz, 1H), 3.65-3.34 (m, 4H), 3.13- 3.05 (m, 1H), 2.98 (s, 6H), 2.91 (d, J = 3.1 Hz, 1H), 2.48 (dd, J = 13.0, 6.6 Hz, 1H), 2.35 (d, J = 12.3 Hz, 2H), 2.27-2.12 (m, 2H),; 597.4 [M + H]⁺ 1.28 798

N-(5-((6-((R)-3-(4- chloro-3- fluorophenyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.08 (s, 1H), 7.88 (s, 1H), 7.38 (t, J = 7.9 Hz, 1H), 7.18 (dd, J = 10.1, 2.0 Hz, 1H), 7.10 (dd, J = 8.3, 2.0 Hz, 1H), 6.92 (s, 1H), 6.60 (dd, J = 16.9, 10.3 Hz, 1H), 6.29 (dd, J = 16.9, 1.6 Hz, 1H), 5.96 (s, 1H), 5.73 (dd, J = 10.2, 1.6 Hz, 1H), 5.42 (d, J = 7.4 Hz, 1H), 4.31 (td, J = 7.6, 4.2 Hz, 1H), 4.07 (q, J = 7.9 Hz, 1H), 3.78 (s, 3H), 3.58 (d, J = 11.9 Hz, 2H), 3.41-3.27 (m, 2H), 3.21 (tt, J = 4.4, 2.1 Hz, 7H), 3.00-2.84 (m, 1H), 2.42-2.23 (m, 1H), 1.34 (t, J = 7.3 Hz, 3H),; 582.3 [M + H]⁺ 1.28 799

N-(5-((6- ((R)-3-(4- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-((S)-3- (dimethylami no)pyrolidine- 1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.09 (s, 1H), 7.80 (s, 1H), 7.38 (t, 7.9 Hz, 1H), 7.14 (ddd, J = 31.8, 9.2, 2.0 Hz, 2H), 6.98 (s, 1H), 6.56 (dd, J = 16.9, 10.2 Hz, 1H), 6.33 (dd, J = 17.0, 1.6 Hz, 1H), 5.95 (s, 1H), 5.75 (dd, J = 10.2, 1.6 Hz, 1H), 5.41 (s, 1H), 4.32 (td, J = 7.5, 4.1 Hz, 1H), 4.08 (td, J = 8.3, 6.6 Hz, 2H), 3.79 (s, 5H), 3.66-3.40 (m, 3H), 3.38-3.24 (m, 3H), 3.06-2.77 (m, 9H), 2.60 (s, 1H), 2.33 (ddd, J = 37.1, 18.9, 9.9 Hz, 4H), 2.13 (s, 2H),; 666.5[M + H]⁺ 1.17 800

N-(5-((6- ((R)-3-(4- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-((R)-3- (dimethylami no)pyrolidine- 1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.36 (s, 1H), 9.39 (s, 1H), 8.35 (s, 1H), 7.85 (s, 1H), 7.60 (t, J = 8.1 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.25 (dd, J = 8.4, 2.0 Hz, 1H), 6.98 (d, J = 7.0 Hz, 1H), 6.72 (dt, J = 17.1, 8.4 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.13 (s, 1H), 5.81-5.73 (m, 1H), 5.56 (dd, J = 8.5, 5.4 Hz, 1H), 4.32 (td, J = 7.6, 4.4 Hz, 2H), 4.21 (s, 1H), 4.05 (dq, J = 26.8, 9.7, 8.7 Hz, 3H), 3.70-3.50 (m, 2H), 3.40 (s, 1H), 3.28 (d, J = 12.1 Hz, 2H), 2.95 (tq, J = 12.2, 7.3, 5.9 Hz, 1H), 2.88-2.75 (m, 8H), 2.48-2.40 (m, 1H), 2.33 (dtd, J = 12.7, 7.5, 5.2 Hz, 1H), 2.15 (dd, J = 30.8, 18.7 Hz, 4H),; 665.5[M + H]⁺ 1.37 801

N-(5-((6- ((R)-3-(4- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4- (oxetane-3- yl)piperazine- 1-yl)phenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.22 (dd, J = 15.0, 7.8 Hz, 1H), 8.32 (d, J = 4.0 Hz, 1H), 8.01 (d, J = 7.9 Hz, 1H), 7.60 (t, J = 8.0 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.25 (d, J = 8,4 Hz, 1H), 6.93 (d, J = 3.9 Hz, 1H), 6.73 (dt, J = 17.2, 8.5 Hz, 1H), 6.25 (dt, J = 17.1, 2.5 Hz, 1H), 6.08 (d, J = 8.3 Hz, 1H), 5.83-5.71 (m, 1H), 5.54 (dd, J = 8.5, 5.5 Hz, 1H), 4.81 (q, J = 7.8 Hz, 2H), 4.69 (h, J = 7.8, 6.3 Hz, 1H), 4.56 (s, 1H), 4.31 (tt, J = 7.5, 3.8 Hz, 1H), 4.08 (q, J = 7.2 Hz, 1H), 3.83 (s, 3H), 3.63 (s, 1H), 3.56-3,47 (m, 1H), 2.98-2.87 (m, 1H), 2.40 (d, J = 7.2 Hz, 7H),; 610.4[M + H]⁺ 1.46 802

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[2 .2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- chloro-3- fluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.17 (s, 1H), 9.30 (d, J = 32.5 Hz, 1H), 8.33 (t, J = 2.9 Hz, 1H), 7.85 (d, J = 12.8 Hz, 1H), 7.60 (t, J = 8.0 Hz, 1H), 7.42 (dd J = 10.4, 2.0 Hz, 1H), 7.30-7.16 (m, 1H), 6.92 (d, J = 7.2 Hz, 1H), 6.61 (dt, J = 17.7, 10.2 Hz, 1H), 6.25 (dt, J = 17.1, 2.2 Hz, 1H), 6.13 (s, 1H), 5.76 (dd, J = 10.1, 1.8 Hz, 2H), 5.55 (dd, J = 8.6, 5.5 Hz, 1H), 4.80-4.40 (m, 3H), 4.30 (q, J = 6.9 Hz, 1H), 4.21 (d, J = 10.3 Hz, 1H), 4.06 (q, J = 5.4, 3.2 Hz, 2H), 3.82 (d, J = 2.2 Hz, 3H), 3.70 (dd, J = 9.6, 5.2 Hz, 1H), 3.57-3.08 (m, 5H), 3.02-2.63 (m, 3H), 2.32 (dtd, J = 12.8, 7.5, 5.0 Hz, 2H), 2.20-1.91 (m, 5H),; 650.4[M + H]⁺ 1.46 803

N-(5-((6-((R)- 3-(4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4- (dimethylamin o)-[1,4′- bipiperidine]- 1 ′-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d) δ 9.37-9.18 (m, 1H), 8.34 (s, 1H), 7.87 (s, 1H), 7.60 (t, J = 8.0 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.24 (dd, J = 8.4, 2.0 Hz, 1H), 6.92 (s, 1H), 6.78 (dd, = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 16.9,2.0 Hz, 1H), 6.18-6.03 (m, 1H), 5.76 (dd, J = 10.1,2.1 Hz, 1H), 5.55 (dd, J = 8.5, 5.4 Hz, 1H), 4.31 (td, J = 7.6, 4.4 Hz, 1H), 4.07 (q, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.62 (d, J = 11.6 Hz, 2H), 3.52 (s, 1H), 3.38 (d, J = 12.2 Hz, 1H), 3.24 (d, J = 11.3 Hz, 2H), 3.20- 3.08 (m, 2H), 3.07-2.90 (m, 2H), 2.81 (d, J = 13.2 Hz, 2H), 2.71 (d, J = 4.8 Hz, 6H), 2.33 (dd, J = 12.2, 5.7 Hz, 5H), 2.22-2.03 (m, 4H),; 679.6[M + H]⁺ 1.34 804

N-(5-((6-((R)- 3-(3,4- dichloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4- isopropylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.87 (s, 1H), 9.19 (s, 1H), 8.29 (s, 1H), 7.98 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.41 (d, J = 8.0 Hz, 1H), 6.90 (s, 1H), 6.71 (dd, = 16.9, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 2H), 5.73 (ddd, J = 25.8, 9.3, 3.8 Hz, 2H), 4.30 (d, J = 4.1 Hz, 1H), 4.03 (d, J = 7.9 Hz, 3H), 3.82 (s, 3H), 3.60 (t, J = 6.4 Hz, 2H), 3.48 (d, J = 7.0 Hz, 2H), 3.22 (d, J = 11.3 Hz, 3H), 3.00- 2.88 (m, 2H), 2.85-2.76 (m, 2H), 2.31 (dd, J = 13.2, 6.0 Hz, 2H), 2.21-2.02 (m, 5H), 1.32 (d, J = 6.6 Hz, 6H),; 713.6 [M + H]⁺ 1.53 805

N-(5-((6-((R)- 3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4- (dimethylamin o)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.78 (s, 1H), 8.43 (s, 1H), 8.31 (d, J = 1.0 Hz, 1H), 7.47 (s, 1H), 7.39 (d, J = 8.5 Hz, 2H), 7.30 (d, J = 8.5 Hz, 2H), 6.73 (s, 1H), 6.64 (s, 1H), 6.43-6.28 (m, 2H), 5.75 (dd, J = 8.9, 2.7 Hz, 1H), 5.65 (dd, J = 8.6, 4.5 Hz, 1H), 4.14 (td, J = 8.0, 4.4 Hz, 1H), 4.05 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.11 (d, J = 11.4 Hz, 2H), 2.82- 2.71 (m, 4H), 2.57 (s, 6H), 2.33 (dp, J = 12.4, 4.4, 3.9 Hz, 1H), 2.12 (d, J = 12.4 Hz, 2H), 1.86 (tt, J = 13.0, 7.6 Hz, 2H); 578.5[M + H]⁺ 1.21 806

N-(2-(4-(4- acetylpiper- azine-1-yl)piperidtne- 1-yl)-5-((6- ((R)-3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (d, J = 3.5 Hz, 1H), 8.14 (s, 1H), 7.42 (d, J = 8.4 Hz, 2H), 7.33 (d, J = 8.5 Hz, 2H), 6.90 (s, 1H), 6.54 (dd, J = 17.0, 10.2 Hz, 1H), 6.41- 6.31 (m, 2H), 5.79 (d, J = 10.3 Hz, 1H), 5.52 (dd, J = 8.6, 4.7 Hz, 1H), 4.13 (td, J = 7.9, 4.3 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.85 (s, 3H), 3.62 (dt, J = 14.9, 5.0 Hz, 4H), 3.17- 3.10 (m, 2H), 2.78 (ddd, J = 11.9, 7.8, 4.2 Hz, 3H), 2.70 (dt, J = 21.8, 5.2 Hz, 4H), 2.50 (tt, J = 11.4, 3.8 Hz, 1H), 2.35-2.28 (m, 1H), 2.11 (s, 3H), 2.06-2.00 (m, 2H), 1.78 (dd, J = 12.4, 4.0Hz, 2H); 661.5[M + H]⁺ 1.22 807

N-(5-((6-((R)- 3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- isopropylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide 661.6[M + H]⁺ 1.18 808

N-(5-((6-((R)- 3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4- (dimethylamin o)-[1,4- bipiperidine]- 1′-yl)-4- methoxyphenyl)acrylamide 661.6[M + H]⁺ 1.13 809

N-(2-(4-(4- acetylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.00 (s, 1H), 9.21 (s, 1H), 8.30 (s, 1H), 7.89 (s, 1H), 7.41 (dt, J = 6.5, 2.7 Hz, 2H), 7.18 (d, J = 8.8 Hz, 2H), 6.90 (s, 1H), 6.70 (dd, J = 17.0, 10.1 Hz, 1H), 6.25 (dd, J = 17.0, 1.9 Hz, 1H), 6.08 (s, 1H), 5.75 (dd, J = 10.0, 2.0 Hz, 1H), 5.53 (dd, 8.5, 5.2 Hz, 1H), 4.49 (d, J = 13.6 Hz, 1H), 4.33-4.28 (m, 1H), 4.04 (s, 1H), 3.80 (s, 3H), 3.48 (d, J = 5.1 Hz, 2H), 3.19 (d, J = 17.9 Hz, 6H), 3.04-2.88 (m, 4H), 2.78 (s, 2H), 2.30 (d, J = 7.6 Hz, 2H), 2.20 (d, J = 11.7 Hz, 2H), 2.06 (s, 3H),; 645.6 [M + H]⁺ 1.12 810

N-(2-(4-((R)-3- (dimethylamin o)pyrolidine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.25 (s, 1H), 9.34 (s, 1H), 8.33 (s, 1H), 7.83 (s, 1H), 7.40 (dd, J = 8.6, 5.5 Hz, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.96 (d, J = 7.6 Hz, 1H), 6.69 (dd, J = 17.0, 10.0 Hz, 1H), 6.29-6.23 (m, 1H), 6.06 (s, 1H), 5.79-5.72 (m, 1H), 5.53 (dd, J = 8.4, 5.4 Hz, 1H), 4.33 (s, 1H), 4.08 (d, J = 7.6 Hz, 2H), 4.00 (d, J = 3.7 Hz, 2H), 3.89 (d, J = 5.9 Hz, 1H), 3.75 (s, 1H), 3.64 (d, J = 8.8 Hz, 1H), 3.59-3.51 (m, 1H), 3.39 (s, 1H), 3.28-3.21 (m, 2H), 2.95 (td, J = 7.5, 4.1 Hz, 1H), 2.85-2.75 (m, 8H), 2.46-2.38 (m, 1H), 2.31 (d, J = 7.6 Hz, 1H), 2.23-2.08 (m, 4H), 1.65-1.56 (m, 1H), 1.47-1.37 (m, 1H),; 631.3 [M + H]⁺ 1.04 811

N-(2-(4-((S)-3- (dimethylamin o)pyrolidine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.87 (s, 1H), 9.26 (s, 1H), 8.29 (s, 1H), 7.89 (s, 1H), 7.46- 7.37 (m, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.93 (d, J = 7.6 Hz, 1H), 6.66 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 16.9, 1.9 Hz, 1H), 6.11- 5.97 (m, 1H), 5.76 (d, J = 10.7 Hz, 1H), 5.52 (t, J = 7.0 Hz, 1H), 4.29 (d, J = 4.8 Hz, 1H), 4.06-3.96 (m, 3H), 3.93 (s, 2H), 3.81 (s, 3H), 3.39 (s, 1H), 3.20 (d, J = 25.1 Hz, 4H), 3.07-2.99 (m, 1H), 2.87-2.81 (m, 6H), 2.72 (d, J = 4.9 Hz, 2H), 2.33-2.26 (m, 2H), 2.20- 2.01 (m, 4H); 631.3 [M + H]⁺ 1.03 812

N-(2-(4-((1S,4S)- 2-oxa-5- azabicyclo[2.2.1] heptane-5- yl)piperidine-1- yl)-5-((6-((R)-3- (4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 616.3 [M + H]⁺ 1.11 813

N-(2-(4-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1] heptane-5- yl)piperidine-1- yl)-5-((6-((R)-3- (4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.08 (s, 1H), 9.28 (d, J = 30.5 Hz, 1H), 8.32 (s, 1H), 7.85 (d, J = 13.4 Hz, 1H), 7.44-7.36 (m, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.91 (d, J = 7.5 Hz, 1H), 6.69-6.54 (m, 1H), 6.24 (dd, J = 17.0, 2.1 Hz, 1H), 6.07 (s, 1H), 5.79-5.71 (m, 1H), 5.53 (dd, J = 8.5, 5.3 Hz, 1H), 4.73- 4.53 (m, 3H), 4.31 (d, J = 4.5 Hz, 1H), 4.19 (s, 1H), 4.05 (s, 1H), 3.81 (s, 3H), 3.73-3.67 (m, 2H), 3.52-3.42 (m, 2H), 3.23 (d, J = 10.8 Hz, 2H), 2.95-2.71 (m, 4H), 2.32 (t, J = 3.9 Hz, 2H), 2.11-2.01 (m, 3H),; 616.3 [M + H]⁺ 1.13 814

N-(2-(4-((2S,6R)- 2,6- dimethylmorpho- lino)piperidine-1- yl)-5-((6-((R)-3- (4- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide 632.3 [M + H]⁺ 1.18 815

N-(2-(4-(4- acetylpiperazine- 1-yl)piperidine-1- yl)-5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.75 (s, 1H), 10.12 (s, 1H), 9.24 (s, 1H), 8.32 (s, 1H), 7.89 (s, 1H), 7.32 (td, J = 9.4, 4.4 Hz, 1H), 7.24-7.19 (m, 1H), 7.16 (ddt, J = 9.1,5.9, 2.7 Hz, 1H), 6.91 (s, 1H), 6.70 (dd, J = 17.0, 10.1 Hz, 1H), 6.24 (dd, J = 17.0, 1.9 Hz, 1H), 5.75 (dd, J = 10.2, 1.9 Hz, 1H), 5.66 (dd, J = 8.7, 5.6 Hz, 1H), 4.53-4.46 (m, 2H), 4.32 (td, J = 7.6, 4.0 Hz, 3H), 4.09-3.96 (m, 4H), 3.81 (S, 4H), 3.73 (t, J = 13.0 Hz, 2H), 3.35 (t, J = 13.1 Hz, 2H), 3.29-3.17 (m, 4H), 2.96 (dtd, J = 19.3, 11.7, 9.7, 4.7 Hz, 3H), 2.80 (s, 2H), 2.06 (s, 4H),; 663.6[M + H] 1.18 816

N-(5-((6-((R)- 3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-((S)-3- (dimethylami no)pyrolidine- 1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.77 (s, 1H), 9.14 (s, 1H), 8.29 (s, 1H), 7.96 (s, 1H), 7.32 (td, J = 9.3, 4.4 Hz, 1H), 7.26-7.13 (m, 2H), 6.88 (d, J = 13.3 Hz, 1H), 6.68 (dd, J = 16.9, 10.2 Hz, 1H), 6.26 (d, J = 1.9 Hz, 1H), 5.78- 5.72 (m, 1H), 5.67 (dd, J = 8.7, 5.5 Hz, 1H), 4.01 (q, J = 7.8 Hz, 6H), 3.81 (s, 5H), 3.71- 3.60 (m, 3H), 3.43 (s, 2H), 3.20 (t, J = 12.0 Hz, 5H), 2.91 (dt, J = 11.8, 4.7 Hz, 2H), 2.83-2.55 (m, 5H), 2.44-2.16 (m, 6H), 2.05 (d, J = 11.9 Hz, 2H),; 649.5[M + H]⁺ 1.10 817

N-(2-(4,4- difluoro-[1,4′- bipiperidine]- 1′-yl)-5-((6- ((R)-3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide 656.5[M + H]⁺ 1.27 818

N-(5-((6-((R)- 3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy-2- (4- methylpiper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.53 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.37- 7.28 (m, 1H), 7.03-6.94 (m, 2H), 6.93- 6.86 (m, 1H), 6.78 (d, J = 16.4 Hz, 2H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.27 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 8.8, 4.4 Hz, 1H), 5.75 (dd, J = 10.0, 1.6 Hz, 1H), 4.16-4.02 (m, 2H), 3.85 (s, 3H), 2.95-2.89 (m, 4H), 2.87- 2.79 (m, 1H), 2.40 (s, 3H), 2.34-2.25 (m, 1H), 1.66-1.62 (m, 4H),; 552.4 [M + H]⁺ 1.18 819

N-(5-((6-((R)- 3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- (dimethyl- amino)piperidine- 1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.46 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.37- 7.28 (m, 1H), 7.03-6.97 (m, 1H), 6.95 (s, 1H), 6.93-6.87 (m, 1H), 6.76 (d, J = 2.4 Hz, 2H), 6.41-6.32 (m, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.90 (dd, J = 8.8, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.16-4.05 (m, 2H), 3.85 (s, 3H), 3.08 (d, J = 11.5 Hz, 2H), 2.88-2.80 (m, 1H), 2.79-2.70 (m, 2H), 2.43 (s, 6H), 2.32-2.25 (m, 2H), 2.09 (d, J = 12.6 Hz, 2H), 1.74-1.70 (m, 2H),; 580.4 [M + H]⁺ 1.19 820

N-(2-(4-(8- oxa-3- azabicyclo[3. 2.1]octan-3- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ; 648.5 [M + H]⁺ 1.25 821

N-(5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((S)-2- methylmorpho- lino)piperidine- 1-yl)phenyl)acrylamide 636.5 [M + H]⁺ 1.23 822

N-(5-((6-((R)-3- (2,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((R)-2- methylmorpho- lino)piperidine- 1-yl)phenyl)acrylamide 636.5 [M + H]⁺ 1.22 823

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophe nyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.19 (s, 1H), 7.07 (d, J = 6.7 Hz, 2H), 6.95 (s, 1H), 6.87-6.80 (m, 1H), 6.56 (dd, J = 16.9, 10.2 Hz, 1H), 6.48 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.81 (d, J = 11.5 Hz, 1H), 5.59-5.54 (m, 1H), 4.15 (td, J = 7.9, 4.3 Hz, 1H), 3.98 (dd, J = 16.0, 8.0 Hz, 1H), 3.90 (d, J = 5.9 Hz, 7H), 2.98-2.91 (m, 4H), 2.88-2.79 (m, 1H), 2.41-2.29 (m, 1H),; 539.4 [M + H]⁺ 1.46 824

N-(5-((6-((R)-3- (3-chloro-4- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophe nyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.18 (s, 1H), 7.58-7.54 (m, 1H), 7.45- 7.37 (m, 1H), 7.22 (d, J = 8.8 Hz, 1H), 6.95 (s, 1H), 6.60-6.53 (m, 1H), 6.48 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.81 (d, J = 10.3 Hz, 1H), 5.55 (dd, J = 8.4, 4.9 Hz, 1H), 4.16 (td, J = 7.8, 4.1 Hz, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.90 (d, J = 5.5 Hz, 7H), 2.98- 2.91 (m, 4H), 2.82 (dtd, J = 12.2, 8.0, 4.2 Hz, 1H), 2.34 (ddd, J = 16.4, 10.4, 6.5 Hz, 1H),; 555.4 [M + H]⁺ 1.50 825

N-(5-((6-((R)-3- (2,5- difluorophenyli soxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2- morpholinophe nyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.35 (s, 1H), 8.19 (s, 1H), 7.26 (ddd, J = 9.1,5.8, 3.2 Hz, 1H), 7.15 (td, J = 9.3, 4.3 Hz, 1H), 7.07- 7.00 (m, 1H), 6.95 (s, 1H), 6.61-6.49 (m, 2H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.84- 5.73 (m, 2H), 4.15 (td, J = 7.9, 4.2 Hz, 1H), 4.00 (q, J = 8.0 Hz, 1H), 3.92-3.86 (m, 7H), 2.98-2.93 (m, 4H), 2.86 (ddd, J = 16.7, 8.2, 4.2 Hz, 1H), 2.34-2.22 (m, 1H),; 539.4 [M + H]⁺ 1.46 826

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[ 2.2.1]hepta ne-5- yl)piperidine- 1-yl)-5- ((6-((R)-3- (2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.29-7.21 (m, 1H), 7.20-7.10 (m, 1H), 7.08-7.00 (m, 1H), 6.94 (s, 1H), 6.62- 6.46 (m, 2H), 6.41-6.31 (m, 1H), 5.87-5.70 (m, 2H), 4.21-4.13 (m, 3H), 4.02-3.96 (m, 1H), 3.90 (s, 3H), 3.80-3.72 (m, 1H), 3.19- 3.13 (m, 2H), 3.02-2.91 (m, 2H), 2.90-2.80 (m, 3H), 2.32-2.23 (m, 1H), 2.20-2.13 (m, 1H), 2.13-2.07 (m, 1H), 2.07-2.02 (m, 2H), 1.86-1.76 (m, 2H); 634.3 [M + H]⁺ 1.22 827

N-(5-((6- ((R)-3-(3,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((3S,5R)- 4-ethyl-3,5- dimethylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.18 (s, 1H), 7.11-7.01 (m, 2H), 6.92 (s, 1H), 6.90-6.78 (m, 1H), 6.64-6.50 (m, 1H), 6.46 (s, 1H), 6.41-6.31 (m, 1H), 5.86-5.78 (m, 1H), 5.61-5.51 (m, 1H), 4.18-4.13 (m, 1H), 4.00- 3.94 (m, 1H), 3.88 (s, 3H), 3.30-3.27 (m, 3H), 3.24-3.13 (m, 6H), 2.86-2.76 (m, 4H), 2.60- 2.52 (m, 1H), 2.43-2.32 (m, 3H), 1.84-1.76 (m, 2H), 1.35-1.33 (m, 6H), 1.25-1.21 (m, 3H); 677.4 [M + H]⁺ 1.23 828

N-(2-(4-(6- azaspiro[2. 5]octan-6- yl)piperidine- 1-yl)-5- ((6-((R)-3- (2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (s, 1H), 8.19 (s, 1H), 7.31-7.21 (m, 1H), 7.21-7.10(m, 1H), 7.08-7.00 (m, 1H), 6.93 (s, 1H), 6.65- 6.48 (m, 2H), 6.41-6.33 (m, 1H), 5.86-5.72 (m, 2H), 4.19-4.12 (m, 1H), 4.01-3.96 (m, 1H), 3.90 (s, 3H), 3.31-3.21 (m, 5H), 2.96- 2.79 (m, 4H), 2.36-2.15 (m, 4H), 2.12-1.99 (m, 3H), 1.82-1.68 (m, 3H), 0.53 (s, 4H); 646.3 [M + H]⁺ 1.33 829

N-(2-(4-(4- cyclopropyl- 1,4- diazepane- 1-yl)piperidine- 1-yl)-5- ((6-((R)-3- (2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.25 (d, J = 3.8 Hz, 1H), 8.11 (s, 1H), 7.18 (ddd, J = 3.2, 5.8, 9.2 Hz, 1H), 7.08 (td, J = 4.3, 9.3 Hz, 1H), 6.97 (dt, J = 4.2, 8.7 Hz, 1H), 6.85 (s, 1H), 6.57- 6.41 (m, 2H), 6.31 (d, J = 16.9 Hz, 1H), 5.80- 5.64 (m, 2H), 4.07 (dd, J = 4.2, 8.0 Hz, 1H), 3.92 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.34-3.27 (m, 3H), 3.15 (d, J = 12.1 Hz, 3H), 3.08-3.04 (m, 2H), 2.93 (q, J = 5.8, 6.2 Hz, 3H), 2.79 (ddd, J = 6.2, 9.9, 15.1 Hz, 3H), 2.21 (dtd, J = 4.5, 8.0, 12.6 Hz, 1H), 2.11-1.92 (m, 7H), 0.52 (dd, J = 4.3, 6.4 Hz, 2H), 0.49-0.42 (m, 2H); 675.4 [M + H]⁺ 1.14 830

N-(2-(4- cyclopropyl piperazine- 1-yl)-5-((6- ((R)-3-(3- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.84 (s, 1H), 9.45 (s, 1H), 9.13 (s, 1H), 8.26 (s, 1H), 8.13 (s, 1H), 7.42 (td, J = 7.9, 6.0 Hz, 1H), 7.31-7.17 (m, 2H), 7.11 (td, J = 8.5, 2.7 Hz, 1H), 6.84(s, 1H), 6.74 (dd, J = 17.0, 10.2 Hz, 1H), 6.33- 6.12 (m, 2H), 5.77 (dd, J = 10.1,2.0 Hz, 1H), 5.54 (dd, J = 8.5, 5.3 Hz, 1H), 4.25 (q, J = 7.2, 6.7 Hz, 1H), 3.97 (q, J = 7.8 Hz, 1H), 3.82 (s, 3H), 3.55 (s, 3H), 3.21 (d, J = 4.7 Hz, 4H), 2.96- 2.81 (m, 2H), 2.36-2.22 (m, 2H), 1.22-1.11 (m, 2H), 0.85 (d, J = 7.1 Hz, 2H),; 560.4 [M + H]⁺ 1.14 831

N-(2-(4- acetylpiper- azine-1-yl)-5- ((6-((R)-3-(3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.80 (s, 1H), 9.18 (s, 1H), 8.29 (s, 1H), 8.00 (s, 1H), 7.42 (td, J = 8.0, 6.1 Hz, 1H), 7.20 (dd, J = 14.6, 5.3 Hz, 2H), 7.12 (td, J = 8.6, 2.6 Hz, 1H), 6.92 (s, 1H), 6.69 (dd, J = 17.0, 10.1 Hz, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 6.12 (s, 1H), 5.75 (dd, J = 10.2, 2.0 Hz, 1H), 5.59-5.47 (m, 1H), 4.29 (dt, J = 7.9, 3.9 Hz, 1H), 4.03 (d, J = 7.7 Hz, 1H), 3.79 (s, 3H), 3.66 (d, J = 4.8 Hz, 4H), 2.87 (dt, J = 16.2, 4.9 Hz, 5H), 2.32 (h, J = 7.4 Hz, 1H), 2.05 (s, 3H),; 562.4 [M + H]⁺ 1.30 832

N-(2- ((1S,4S)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.77 (s, 1H), 9.37 (s, 1H), 8.27 (s, 1H), 7.42 (td, J = 8.0, 6.2 Hz, 1H), 7.24-7.08 (m, 4H), 6.52- 6.39 (m, 2H), 6.19 (dd, J = 17.1,2.1 Hz, 1H), 6.01 (s, 1H), 5.70 (dd, J = 10.2, 2.1 Hz, 1H), 5.54 (t, J = 7.0 Hz, 1H), 4.53 (d, J = 21.0 Hz, 2H), 4.29(t, J = 6.2 Hz, 1H), 4.05-4.01 (m, 1H), 3.95 (d, J = 7.7 Hz, 1H), 3.79 (s, 4H), 3.56 (d, J = 9.3 Hz, 1H), 2.93 (d, J = 9.9 Hz, 2H), 2.32 (q, J = 5.4 Hz, 1H), 1.85 (q, J = 9.8 Hz, 2H),; 533.4 [M + H]⁺ 1.29 833

N-(2- ((1R,4R)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.92 (s, 1H), 9.40 (s, 1H), 8.29 (s, 1H), 7.42 (td, J = 8.1,6.2 Hz, 1H), 7.28-7.04 (m, 4H), 6.54- 6.41 (m, 2H), 6.19 (dd, J = 17.1, 2.1 Hz, 1H), 5.99 (s, 1H), 5.70 (dd, J = 10.1,2.1 Hz, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.53 (d, d = 18.2 Hz, 2H), 4.31 (q, J = 3.2 Hz, 1H), 4.05 (q, J = 7.7 Hz, 1H), 3.95 (d, J = 7.6 Hz, 1H), 3.77 (d, J = 9.2 Hz, 4H), 3.56 (d, J = 9.4 Hz, 1H), 2.92 (t, J = 10.6 Hz, 2H), 2.32 (dq, J = 12.8, 7.3, 6.5 Hz, 1H), 1.88 (dd, J = 17.8, 8.3 Hz, 2H); 533.5 [M + Hf 1.29 834

N-(5-((6- ((R)-3-(3- chloro-2- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-((R)-3- (dimethylami no)pyrolidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.57 (d, J = 9.7 Hz, 1H), 8.24 (d, J = 4.4 Hz, 1H), 7.63 (s, 1H), 7.59-7.50 (m, 1H), 7.37 (t, J = 7.1 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.89- 6.76 (m, 1H), 6.71 (d, J = 21.2 Hz, 1H), 6.26-6.10 (m, 2H), 5.71 (td, J = 6.0, 2.6 Hz, 2H), 4.32-4.21 (m, 1H), 3.98 (d, J = 7.5 Hz, 1H), 3.92-3.86 (m, 1H), 3.83 (d, J = 7.8 Hz, 3H), 3.13 (dt, J = 11.7, 4.1 Hz, 2H), 3.07 (t, J = 7.8 Hz, 2H), 2.91 (t, J = 8.1 Hz, 2H), 2.80 (dd, J = 8.0,4.7 Hz, 6H), 2.38- 2.20 (m, 3H),; 582.4 [M + H]⁺ 1.21 835

N-(2-(4- ((1S,4S)-5- ethyl-2,5- diazabicyclo[2.2 .1]heptane-2- yl)piperidine-1- yl)-5-((6-((R)-3- (3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.24 (d, J = 12.7 Hz, 1H), 8.28 (s, 1H), 7.90 (s, 1H), 7.42 (td, J = 8.0, 6.1 Hz, 1H), 7.26-7.17 (m, 2H), 7.12 (td, J = 8.7, 2.7 Hz, 1H), 6.90 (d, J = 17.0 Hz, 1H), 6.58 (t, J = 13.9 Hz, 1H), 6.25 (ddd, J = 17.1, 4.8, 1.9 Hz, 1H), 6.19-6.01 (m, 1H), 5.76 (d,J = 10.5 Hz, 1H), 5.54 (dd, J = 8.5, 5.3 Hz, 1H), 4.56 (s, 1H), 4.27 (td, J = 7.9, 7.4, 4.7 Hz, 1H), 4.01 (q, J = 7.8 Hz, 2H), 3.82 (s, 3H), 3.76 (t, J = 6.3 Hz, 1H), 3.61 (dqd, J = 13.2,6.6, 3.7 Hz, 8H), 3.12 (qd, J = 7.4, 4.2 Hz, 7H), 2.90 (d, J = in Hz, 1H), 2.77-2.67 (m, 2H), 2.31 (tdd, J = 12.7, 8.8, 5.3 Hz, 2H), 2.19-1.95 (m, 2H),; 643.6 [M + H]⁺ 1.05 836

N-(5-((6-((R)-3- (4-chloro-3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-2-((S)- 3-(dimethylamino) pyrolidine-1-yl)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₅) δ 9.54 (s, 1H), 8.24 (d, J = 4.6 Hz, 1H), 7.68-7.55 (m, 2H), 7.41 (dd, J = 10.5, 2.0 Hz, 1H), 7.26 (d, J = 8.5 Hz, 1H), 6.81 (s, 1H), 6.68 (s, 1H), 6.30-6.04 (m, 2H), 5.79-5.67 (m, 1H), 5.54 (dd, J = 8.8, 5.4 Hz, 1H), 3.82 (d, J = 7.8 Hz, 3H), 3.39 (t, J = 6.9 Hz, 2H), 3.19-3.13 (m, 4H), 3.08 (s, 4H), 2.80 (dd, J = 8.1,4.7 Hz, 6H), 2.39-2.22 (m, 2H),; 585.2 [M + H]⁺ 1.23 837

N-(5-((6-((R)-3- (3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- ((1S,4S)-5- methyl-2,5- diazabicyclo[2.2 .1]heptane-2- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.26 (s, 1H), 8.30 (s, 1H), 7.87 (s, 1H), 7.42 (td, J = 8.0, 6.0 Hz, 1H), 7.25-7.16 (m, 2H), 7.12 (td, J = 8.6, 2.7 Hz, 1H), 6.91 (d, J = 23.6 Hz, 1H), 6.67-6.50 (m, 1H), 6.24 (dd, J = 17.3, 1.7 Hz, 1H), 6.12 (s, 1H), 5.81-5.71 (m, 1H), 5.59-5.49 (m, 1H), 4.47 (s, 1H), 4.28 (s, 2H), 3.66 (d, J = 4.3 Hz, 3H), 3.55- 3.47(m, 1H), 3.38 (q,J = 7.1 Hz, 2H), 3.27 (t, J = 8.4 Hz, 4H), 3.05-2.98 (m, 5H), 2.88 (t, J = 3.9 Hz, 2H), 2.72 (d, J = 5.0 Hz, 2H), 2.33 (dq, J = 13.3, 5.9 Hz, 2H), 2.19-2.00 (m, 2H), 1.77 (ddd, J = 22.2, 15.4, 8.2 Hz, 2H),; 629.6 [M + H]⁺ 1.04 838

N-(5-((6-((R)-3- (3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-((2- methoxyethyl) (methyl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.38 (s, 1H), 8.37 (s, 1H), 8.08 (d, J = 8.3 Hz, 1H), 7.43 (td, J = 8.0, 5.9 Hz, 1H), 7.32 (s, 1H), 7.25-7.17 (m, 2H), 7.13 (td, J = 8.7, 2.6 Hz, 1H), 6.58 (dd, J = 17.1, 10.1 Hz, 1H), 6.33-6.15 (m, 2H), 5.81 (dd, J = 10.1, 1.9 Hz, 1H), 5.57 (dd, J = 8.5, 5.4 Hz, 1H), 4.32 (td, J = 7.6, 4.3 Hz, 1H), 4.07 (q, J = 7.7 Hz, 1H), 3.86 (s, 3H), 3.49 (t, J = 5.0 Hz, 2H), 3.05 (s, 2H), 2.94 (ddd, J = 12.3, 8.0, 4.6 Hz, 1H), 2.33 (dtd, J = 12.8, 7.7, 5.3 Hz, 1H), 1.26 (dd, J = 10.5, 4.3 Hz, 2H), 0.85 (q, J = 5.2, 4.0 Hz, 2H),; 523.4 [M + H]⁺ 1.49 839

N-(2-((S)-3- (dimethylamino) pyrolidine-1-yl)- 5-((6-((R)-3-(3- fluorophenyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.33 (s, 1H), 9.99 (s, 1H), 9.66 (d, J = 6.9 Hz, 1H), 8.30 (d, J = 2.4 Hz, 1H), 7.58 (d, J = 2.7 Hz, 1H), 7.42 (td, J = 8.2, 6.3 Hz, 1H), 7.24- 7.09 (m, 3H), 6.90 (ddd, J = 17.1, 10.2, 3.1 Hz, 1H), 6.69 (s, 1H), 6.22 (dd, J = 17.0, 2.1 Hz, 1H), 6.13-5.97 (m, 1H), 5.71 (dd, J = 10.1, 2.1 Hz, 1H), 5.55 (dd, J = 8.5, 5.3 Hz, 1H), 4.29 (td, J = 7.6, 4.4 Hz, 2H), 4.04 (q, J = 7.7 Hz, 1H), 3.89 (q, J = 6.1 Hz, 1H), 3.63 (dd, J = 11.1,4.2 Hz, 1H), 3.52 (q, J = 7.6, 7.0 Hz, 1H), 3.41 (dd, J = 11.2, 6.4 Hz, 1H), 3.04 (q,.J = 8.2 Hz, 1H), 2.92 (dtd, J = 12.6, 7.7, 4.6 Hz, 1H), 2.80 (dd, J = 7.4, 4.8 Hz, 6H), 2.38-2.24 (m, 3H),; 548.5 [M + H]* 1.07 840

N-(5-((6- ((R)-3-(3- fluorophenyl)isoxazol- idine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-morpholino phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.39 (s, 1H), 9.36-9.24 (m, 1H), 8.35 (s, 1H), 7.86 (s, 1H), 7.43 (td, J = 8.0, 5.9 Hz, 1H), 7.24- 7.09 (m, 3H), 6.94 (s, 1H), 6.69 (dd, J = 17.0, 10.2 Hz, 1H), 6.24 (dd, J = 16.9, 2.0 Hz, 1H), 6.08 (s, 1H), 5.75 (dd, J = 10.1,2.0 Hz, 1H), 5.55 (dd, J = 8.5, 5.4 Hz, 1H), 4.33 (td, J = 7.5, 4.3 Hz, 1H), 4.09 (q, J = 7.7 Hz, 1H), 3.82 (d, J = 5.1 Hz, 7H), 3.00-2.88 (m, 5H), 2.33 (dtd, J = 12.7, 7.6, 5.3 Hz, 1H),; 521.4 [M + H]⁺ 1.41 841

N-(5-((6- ((R)-3- (2,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 2-(4- ((3S,5R)- 4-ethyl- 3,5- dimethyl- piperazine- 1-yl)piperidine- 1-yl)-4- methoxyph enyl)acrylamide H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.29-7.21 (m, 1H), 7.21- 7.10 (m, 1H), 7.10-6.99 (m, 1H), 6.92 (s, 1H), 6.61-6.46 (m, 2H), 6.41-6.31 (m, 1H), 5.89-5.72 (m, 2H), 4.17-4.12 (m, 1H), 4.03- 3.96 (m, 1H), 3.89 (s, 3H), 3.30-3.26 (m, 3H), 3.26-3.11 (m, 5H), 2.89-2.76 (m, 3H), 2.60-2.51 (m, 1H), 2.43-2.35 (m, 2H), 2.32- 2.23 (m, 1H), 2.07-2.00 (m, 2H), 1.87- 1.73 (m, 2H), 1.34 (s, 3H), 1.33 (s, 3H), 1.22 (t, J = 7.3 Hz, 3H); 677.4 [M + H]⁺ 1.36 842

N-(5-((6- ((R)-3- (3,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-(4-((R)- 3-methylmor pholino)pip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.12-7.02 (m, 2H), 6.94 (s, 1H), 6.87-6.78 (m, 1H), 6.57 (dd, J = 10.2, 17.0 Hz, 1H), 6.46 (s, 1H), 6.42-6.31 (m, 1H), 5.82 (d, J = 10.2 Hz, 1H), 5.60- 5.51 (m, 1H), 4.19-4.13 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 4H), 3.83-3.71 (m, 2H), 3.51-3.41 (m, 1H), 3.23-3.04 (m, 5H), 3.03- 2.92 (m, 1H), 2.92-2.75 (m, 5H), 2.38- 2.29 (m, 1H), 1.93-1.84 (m, 1H), 1.84-1.75 (m, 1H), 1.16 (d, J = 6.4 Hz, 3H); 636.3 [M + H]⁺ 1.24 843

N-(5-((6- ((R)-3- (3,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-(4-((S)- 3-methylmor pholino)pip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.18 (s, 1H), 7.12-7.02 (m,2H), 6.94 (s, 1H), 6.89-6.78 (m, 1H), 6.63-6.50 (m, 1H), 6.46 (s, 1H), 6.42-6.31 (m, 1H), 5.82 (d, J = 10.2 Hz, 1H), 5.62-5.50 (m, 1H), 4.18-4.12 (m, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.89 (s, 4H), 3.82-3.71 (m, 2H), 3.48-3.40 (m, 1H), 3.22-3.05 (m, 5H), 2.98-2.91 (m, 1H), 2.92-2.73 (m, 5H), 2.38-2.30 (m, 1H), 1.93-1.86 (m, 1H), 1.84-1.76 (m, 1H), 1.15 (d, J = 6.4 Hz, 3H); 636.3 [M + H]⁺ 1.24 844

N-(5-((6- ((R)-3-(2- fluoro-3- methylphe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-morpholin ophenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.16 (S, 1H), 7.35 (t, J = 7.3 Hz, 1H), 7.15(t, J = 7.3 Hz, 1H), 7.03 (t, J = 7.6 Hz, 1H), 6.95 (s, 1H), 6.56 (dd, J = 17.0, 10.3 Hz, 1H), 6.49 (s, 1H), 6.36 (d, J = 17.0 Hz, 1H), 5.79 (dd, J = 15.2, 7.2 Hz, 2H), 4.13 (td, J = 7.7, 4.3 Hz, 1H), 3.99 (q, J = 7.9 Hz, 1H), 3.93- 3.79 (m, 7H), 2.99-2.90 (m, 4H), 2.88- 2.80 (m, 1H), 2.32-2.22 (m, 4H),; 535.5 [M + H]⁺ 1.64 845

N-(5-((6- ((R)-3-(2- fluoro-3- methylphe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-(4- methylpip- erazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.16 (s, 1H), 7.35 (t, J = 7.0 Hz, 1H), 7.15(t, J = 7.4 Hz, 1H), 7.03 (t, J = 7.6 Hz, 1H), 6.95 (s, 1H), 6.58-6.47 (m, 2H), 6.36 (d, J = 17.0 Hz, 1H), 5.84-5.74 (m, 2H), 4.13 (td, J = 7.8, 4.5 Hz, 1H), 3.99 (dd, J = 16.4, 8.5 Hz, 1H), 3.90 (s, 3H), 2.99 (t, J = 4.5 Hz, 4H), 2.84 (dt, J = 16.4,6.3 Hz, 1H), 2.70 (s, 4H), 2.41 (s, 3H), 2.31-2.22 (m, 4H),; 548.5 [M + H]⁺ 1.37 846

N-(2-((2- (dimethyl- amino)ethyl)- (methyl)- amino)-5- ((6-((R)-3- (2-fluoro- 3-methylphe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.16 (s, 1H), 7.35 (t, J = 7.0 Hz, 1H), 7.15(t, J = 7.4 Hz, 1H), 7.03 (t, J = 7.6 Hz, 1H), 6.95 (s, 1H), 6.58-6.47 (m, 2H), 6.36 (d, J = 17.0 Hz, 1H), 5.84-5.74 (m, 2H), 4.13 (td, J = 7.8, 4.5 Hz, 1H), 3.99 (dd, J = 16.4, 8.5 Hz, 1H), 3.90 (s, 3H), 2.99 (t, J = 4.5 Hz, 4H), 2.84 (dt, J = 16.4, 6.3 Hz, 1H), 2.70 (s, 4H), 2.41 (s, 3H), 2.31-2.22 (m, 4H),; 550.5 [M + H]⁺ 1.38 847

N-(2-(4- ethylpiper- azine-1-yl)-5-((6- ((R)-3-(2- fluoro-3- methylphe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.34 (s, 1H), 8.16 (s, 1H), 7.35 (t, J = 7.1 Hz, 1H), 7.15 (t, J = 7.4 Hz, 1H), 7.03 (t, J = 7.6 Hz, 1H), 6.96 (s, 1H), 6.58-6.46 (m, 2H), 6.36 (d, J = 15.7 Hz, 1H), 5.85-5.74 (m, 2H), 4.13 (td, J = 7.9, 4.6 Hz, 1H), 3.99 (dd, J = 16.0, 8.1 Hz, 1H), 3.90 (s, 3H), 3.00 (t, J = 4.7 Hz, 4H), 2.90-2.81 (m, 1H), 2.74 (s, 4H), 2.58 (q, J = 7.3 Hz, 2H), 2.33-2.20 (m, 4H), 1.19 (t, J = 7.2 Hz, 3H),; 562.5 [M + H]⁺ 1.23 848

N-(5-((6- ((R)-3- (2,5- difluoroph enyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)- 2-((R)-3- (dimethyl- amino)pyrol idine-1-yl)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.06 (s, 1H), 9.74 (s, 1H), 9.58 (s, 1H), 8.27 (s, 1H), 7.59 (s, 1H), 7.37-7.27 (m, 1H), 7.26- 7.12 (m, 2H), 6.83 (dd, J = 17.0, 10.2 Hz, 1H), 6.69 (s, 1H), 6.22 (dd, J = 17.0, 2.1 Hz, 1H), 6.12(s, 1H), 5.78-5.62 (m, 2H), 4.33- 4.26 (m, 1H), 4.06-3.98 (m, 1H), 3.82 (s, 3H), 3.60 (s, 6H), 3.39-3.37 (m, 1H), 3.10- 3.04 (m, 1H), 2.95-2.88 (m, 1H), 2.82- 2.78 (m, 4H), 2.30-2.27 (m, 1H),; 566.5 [M + H]⁺ 1.16 849

N-(5-((6- ((R)-3-(2,5- difluorophenyl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-(4- ethylpiper- azine-1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.72 (s, 1H), 9.57 (s, 1H), 9.15 (d, J = 5.6 Hz, 1H), 8.27 (d, J = 3.0 Hz, 1H), 8.11 (s, 1H), 7.37-7.27 (m, 1H), 7.26-7.13 (m, 2H), 6.85 (d, J = 13.3 Hz, 1H), 6.74 (dd, J = 17.0, 10.2 Hz, 1H), 6.29-6.18 (m, 2H), 5.80-5.72 (m, 1H), 5.67 (dd, J = 8.7, 5.4 Hz, 1H), 4.33-4.23 (m, 1H), 4.04-3.95 (m, 1H), 3.83 (s, 3H), 3.40-3.37 (m, 2H), 3.30- 3.25 (m, 2H), 3.21-3.16 (m, 4H), 2.99-2.82 (m, 2H), 2.31-2.21 (m, 1H), 1.31 (t, J = 7.3 Hz, 3H),; 566.5 [M + H]⁺ 1.22 850

N-(5-((6- ((R)-3-(2,5- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-(4-((S)-3,4- dimethylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.36- 7.27 (m, 1H), 7.00 (td, J = 9.2, 4.4 Hz, 1H), 6.94 (s, 1H), 6.93-6.84 (m, 1H), 6.76 (d, J = 1.4 Hz, 2H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.90 (dd, J = 8.9, 4.3 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.17-4.02 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.4 Hz, 2H), 3.02-2.95 (m, 1H), 2.93- 2.78 (m, 3H), 2.78-2.66 (m, 2H), 2.44-2.34 (m, 2H), 2.32 (s, 3H), 2.31-2.26 (m, 2H), 2.17 (s, 1H), 2.13-2.04 (m, 2H), 2.03-1.96 (m, 1H), 1.69-1.63 (m, 2H), 1.10 (d, J = 6.1 Hz, 3H),; 649.5 [M + H]⁺ 1.17 851

N-(5-((6- ((R)-3-(2,5- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-(4-((R)- 3,4- dimethylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.44 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.36- 7.27 (m, 1H), 7.00 (td, J = 9.2, 4.4 Hz, 1H), 6.95 (s, 1H), 6.94-6.84 (m, 1H), 6.79-6.72 (m, 2H), 6.41-6.32 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 8.8, 4.3 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 4.17-4.02 (m, 2H), 3.85 (s, 3H), 3.06 (d, J = 11.6 Hz, 2H), 3.02-2.96 (m, 1H), 2.95-2.87 (m, 2H), 2.87- 2.79 (m, 1H), 2.73 (q, J = 12.1 Hz, 2H), 2.41 (s, 2H), 2.34 (s, 3H), 2.32-2.25 (m, 2H), 2.21 (d, J = 23.1 Hz, 1H), 2.12-2.02 (m, 3H), 1.69- 1.64 (m, 2H), 1.12 (d, J = 6.2 Hz, 3H),; 649.5 [M + H]⁺ 1.18 852

N-(5-((6- ((R)-3-(3,5- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 2-(4- (hexahydrop yrrolo[1,2- a]pyrazine- 2(1 H)- yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (d, J = 1.0 Hz,1H), 7.06- 6.96 (m, 2H), 6.94 (s, 1H), 6.75 (s, 1H), 6.74- 6.63 (m, 2H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 10.0, 1.6 Hz, 1H), 5.67 (dd, J = 8.8, 4.6 Hz, 1H), 4.15 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.19-3.13 (m, 1H), 3.13-3.03 (m, 4H), 3.03-2.96 (m, 1H), 2.84- 2.68 (m, 3H), 2.52-2.39 (m, 2H), 2.39-2.27 (m, 2H), 2.20-2.14 (m, 1H), 2.10-2.06 (m, 2H), 1.88-1.66 (m, 8H),; 661.6 [M + H]⁺ 1.18 853

N-(5-((6- ((R)-3-(4- chloro-3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-((2- methoxyethy l)(methyl)ami no)phenyl)ac rylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.34 (s, 1H), 8.37-8.20 (m, 1H), 7.58 (t, J = 8.1 Hz, 1H), 7.42 (dd, J = 10.5, 2.0 Hz, 1H), 7.27 (d, J = 8.3 Hz, 1H), 7.03 (s, 1H), 6.44 (dd, J = 16.9, 10.1 Hz, 1H), 6.23 (d, J = 17.2 Hz, 2H), 5.77 (d, J = 10.2 Hz, 1H), 5.54 (dd, J = 8.6, 5.2 Hz, 1H), 4.22 (td, J = 8.0, 4.1 Hz, 1H), 3.95 (q, J = 7.8 Hz, 1H), 3.81 (s, 3H), 3.49 (t, J = 5.2 Hz, 2H), 3.32 (s, 2H), 3.04 (s, 1H), 2.82 (s, 2H), 2.50 (p, / = 1.9 Hz, 6H), 2.35-2.21 (m,1H),; 557.4[M + H]⁺ 1.63 854

N-(5-((6-((R)- 3-(4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- morpholinophe nyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.11 (s, 1H), 8.22 (s, 1H), 8.06 (s, 1H), 7.58 (t, J = 8.0 Hz, 1H), 7.41 (dd, J = 10.5, 2.0 Hz, 1H), 7.27 (dd, J = 8.4, 2.0 Hz, 1H), 6.89 (s, 1H), 6.64 (dd, J = 16.9, 10.2 Hz, 1H), 6.24 (d, J = 2.0 Hz, 1H), 6.19 (d, J = 2.0 Hz, 1H), 5.73 (dd, J = 10.2, 2.0 Hz, 1H), 5.54 (dd, J = 8.6, 5.2 Hz, 1H), 4.21 (td, J = 7.7, 4.1 Hz, 2H), 3.93 (q, J = 7.9 Hz, 1H), 3.81 (d, J = 6.5 Hz, 7H), 2.87 (t, J = 4.6 Hz, 4H), 2.82 (td, J = 7.7, 3.9 Hz, 1H), 2.29 (ddd, J = 12.6, 8.4, 5.1 Hz, 1H),; 555.4 [M + H]⁺ 1.55 855

N-(5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4- methylpiper- azine-1-yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.07 (s, 1H), 8.81 (s, 1H), 8.13 (d, J = 31.2 Hz, 1H), 7.26 (t, J = 7.4 Hz, 1H), 7.23-7.15 (m, 1H), 7.07 (t, J = 7.5 Hz, 1H), 6.90 (d, J = 38.3 Hz, 1H), 6.72-6.59 (m, 1H), 6.40- 6.17 (m, 2H), 5.80-5.64 (m, 2H), 4.21- 4.12 (m, 1H), 3.85-3.79 (m, 3H), 3.59 (dh, J = 9.7, 3.2 Hz, 3H), 3.13 (dh, J = 11.0, 3.6 Hz, 4H), 3.03 (d, J = 12.9 Hz, 1H), 2.91 (s, 1H), 2.87-2.76 (m, 3H), 2.26 (d, J = 2.2 Hz, 3H), 2.21-2.10 (m, 2H), 1.28 (ddd, J = 8.4, 6.4, 3.0 Hz, 8H), 1.18-1.03 (m, 2H),; 555.4 [M + H]⁺ 1.17 856

N-(5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.49 (s, 1H), 9.14 (s, 1H), 8.23 (s, 1H), 8.03 (s, 1H), 7.27-7.16 (m, 2H), 7.07 (t, J = 7.6 Hz, 1H), 6.89 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.31-6.18 (m, 2H), 5.72 (ddd, J = 17.5, 9.4, 3.6 Hz, 2H), 4.23 (td, J = 7.7, 4.0 Hz, 1H), 4.06-3.92 (m, 7H), 3.81 (s, 3H), 3.59 (pd, J = 6.6, 3.9 Hz, 4H), 3.44 (d, J = 12.1 Hz, 3H), 3.11 (dq, J = 7.4, 3.2 Hz, 5H), 2.26 (d, J = 2.0 Hz, 4H),; 618.5 [M + H]⁺ 1.27 857

N-(5-((6-((R)- 3-(4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- ((1S,4S)-5- methyl-2,5- diazabicyclo[2. 2.1]heptane-2- yl)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.41 (s, 1H), 9.37 (s, 1H), 8.35 (s, 1H), 7.81 (s, 1H), 7.60 (t, J = 8.0 Hz, 1H), 7.42 (dd, J = 10.3, 2.0 Hz, 1H), 7.24 (dd, J = 8.4, 2.0 Hz, 1H), 6.96 (d, J = 20.1 Hz, 1H), 6.75-6.52 (m, 1H), 6.25 (dd, J = 17.0, 1.8 Hz, 1H), 6.12 (s, 1H), 5.82-5.70 (m, 1H), 5.56 (dd, J = 8.5, 5.4 Hz, 1H), 4.82 (s, 1H), 4.71 (s, 1H), 4.49 (s, 2H), 4.32 (td, J = 7.5, 4.3 Hz, 1H), 4.08 (q, J = 7.6 Hz, 2H), 3.83 (s, 3H), 3.79-3.61 (m, 2H), 3.36-3.16 (m, 3H), 3.01-2.63 (m, 7H), 2.42-1.98 (m, 6H),; 663.5 [M + H]⁺ 1.17 858

N-(5-((6-((R)-3- (4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((1S,4S)-5- ethyl-2,5- diazabicyclo[2. 2.1]heptane-2- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.37 (s, 1H), 9.36 (s, 1H), 8.35 (s, 1H), 7.81 (s, 1H), 7.60 (t, J = 8.1 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.25 (dd, J = 8.4, 2.0 Hz, 1H), 6.95 (d, J = 15.4 Hz, 1H), 6.64 (ddd, J = 27.1, 16.8, 10.5 Hz, 1H), 6.25 (dd, J = 16.9,1.8 Hz, 1H), 6.12 (s, 1H), 5.83-5.69 (m, 1H), 5.56 (dd, J = 8.5, 5.4 Hz, 1H), 4.84 (s, 1H), 4.71 (s, 1H), 4.58 (d, J = 8.9 Hz, 2H), 4.32 (td, J = 7.6, 4.4 Hz, 2H), 4.08 (q, J = 7.5 Hz, 2H), 3.38 (s, 3H), 3.72-3.55 (m, 2H), 3.46-3.14 (m, 5H), 2.95 (ddp, J = 12.2, 7.3, 4.4 Hz, 1H), 2.77 (p, J = 13.6, 12.9 Hz, 2H), 2.58 (d, J = 12.5 Hz, 1H), 2.33 (dtd, J = 12.7, 7.5, 5.1 Hz, 1H), 2.09 (d, J = 38.9 Hz, 3H), 1.30 (dd, J = 8.7, 5.0 Hz, 3H),; 677.5 [M + H]⁺ 1.15 859

N-(5-((6-((R)-3- (4-chloro-3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((1R,4R)-5- ethyl-2,5- diazabicyclo[2. 2.1]heptane-2- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.41 (s, 1H), 9.38 (s, 1H), 8.35 (s, 1H), 7.81 (s, 1H), 7.60 (t, J = 8.0 Hz, 1H), 7.42 (dd, J = 10.4, 2.0 Hz, 1H), 7.25 (dd, J = 8.3, 2.0 Hz, 1H), 6.96 (d, J = 14.3 Hz, 1H), 6.63 (td, J = 16.3, 8.2 Hz, 1H), 6.25 (dd, J = 17.1, 1.8 Hz, 1H), 6.12 (d, J = 9.8 Hz, 1H), 5.77 (d, J = 10.5 Hz, 1H), 5.56 (dd, J = 8.5, 5.4 Hz, 1H), 4.84 (s, 1H), 4.71 (s, 1H), 4.58 (d, J = 9.9 Hz, 2H), 4.32 (td, J = 7.6, 4.4 Hz, 1H), 4.08 (q, J = 7.5 Hz, 2H), 3.83 (s, 3H), 3.71- 3.58 (m, 1H), 3.45-3.12 (m, 5H), 2.96 (ddp, J = 12.3, 7.4, 4.6 Hz, 1H), 2.77 (ddd, J = 23.2, 16.4, 8.4 Hz, 2H), 2.40-2.26 (m, 2H), 2.21-2.02 (m, 3H), 1.36-1.22 (m, 4H),; 677.5 [M + H]⁺ 1.17 860

N-(2-((R)-3- (dimethylamino)- pyrolidine-1- yl)-5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, MeOD) δ 8.06-7.93 (m, 1H), 7.56 (s, 1H), 7.27-7.15 (m, 1H), 7.08-6.96 (m, 1H), 6.90 (t, J = 7.6 Hz, 1H), 6.54 (s, 1H), 6.42 (dd, J = 17.0, 10.2 Hz, 1H), 6.29-6.17 (m, 2H), 5.72-5.57 (m, 2H), 3.98 (td, J = 7.9, 4.4 Hz, 1H), 3.83 (q, J = 7.9 Hz, 1H), 3.75 (s, 3H), 3.20- 3.08 (m, 4H), 2.83-2.61 (m, 2H), 2.55 (s, 1H), 2.19 (d, J = 13.3 Hz, 9H), 2.10 (ddd, J = 12.3, 7.9, 4.4 Hz, 2H), 1.84-1.72 (m, 1H),; 562.4[M + H]⁺ 1.19 861

N-(5-((6-((R)-3- (3- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(2- methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 14.80 (s, 1H), 10.08 (s, 1H), 9.23 (s, 1H), 8.36 (d, J = 8.6 Hz, 2H), 7.60 (dd, J = 46.0, 2.1 Hz, 2H), 7.47-7.34 (m, 2H), 7.30-7.20 (m, 2H), 7.11 (td, J = 8.7, 2.8 Hz, 1H), 6.78 (s, 1H), 6.31 (dd, J = 17.1, 10.2 Hz, 1H), 6.09 (dd, J = 17.1, 1.9 Hz, 1H), 5.68 (dd, J = 10.2, 2.0 Hz, 1H), 5.56 (dd, J = 8.7, 5.2 Hz, 1H), 4.24 (td, J = 7.8, 3.7 Hz, 1H), 3.89 (s, 4H), 2.83 (tq, J = 8.3, 4.3 Hz, 1H), 2.54 (s, 3H), 2.30 (dtd, J = 11.8, 7.8, 3.7 Hz, 1H),; 516.4 [M + H]⁺ 1.31 862

N-(2- ((1S,4S)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(4- chloro-3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) <5 9.93 (s, 1H), 9.40 (s, 1H), 8.28 (s, 1H), 7.59 (t, J = 8.0 Hz, 1H), 7.41 (dd, J = 10.4, 2.0 Hz, 1H), 7.24 (dd, J = 8.5, 2.0 Hz, 1H), 7.15 (s, 1H), 6.54-6.40 (m, 2H), 6.19 (dd, J = 17.1,2.1 Hz, 1H), 6.12-5.94 (m, 1H), 5.70 (dd, J = 10.2, 2.1 Hz, 1H), 5.54 (dd, J = 8.5, 5.4 Hz, 1H), 4.51 (s, 2H), 4.32- 4.29 (m, 1H), 4.05 (q, J = 7.7 Hz, 1H), 3.95 (d, J = 7.7 Hz, 1H), 3.78 (d, J = 7.3 Hz, 4H), 3.57 (d, J = 9.3 Hz, 1H), 2.93 (dd, J = 11.3, 5.7 Hz, 2H), 2.37-2.26 (m, 1H), 1.87 (p, J = 10.2, 9.5 Hz, 2H),; 567.4 [M + H]⁺ 1.44 863

N-(2- ((1R,4R)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(4- chloro-3- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.88 (s, 1H), 9.39 (s, 1H), 8.28 (s, 1H), 7.59 (t, J = 8.0 Hz, 1H), 7.41 (dd, J = 10.4, 2.1 Hz, 1H), 7.24 (dd, J = 8.3, 2.0 Hz, 1H), 7.16 (s, 1H), 6.52-6.42 (m, 2H), 6.19 (dd, J = 17.1, 2.1 Hz, 1H), 6.02 (s, 1H), 5.70 (dd, J = 10.1,2.1 Hz, 1H), 5.53 (dd, J = 8.6, 5.4 Hz, 1H), 4.51 (s, 2H), 4.32-4.28 (m, 1H), 4.04 (q, J = 7.6 Hz, 1H), 3.95 (d, J = 7.7 Hz, 1H), 3.78 (d, J = 5.1 Hz, 4H), 3.60- 3.51 (m, 1H), 2.93 (t, J = 8.2 Hz, 2H), 2.32 (td, J = 12.9, 7.5 Hz, 1H), 1.85 (q, J = 9.4 Hz, 2H),; 567.4 [M + H]⁺ 1.45 864

N-(2-(4- (dimethylami no)piperidine- 1-yl)-5-((6- ((R)-3-(2- fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.96 (s, 1H), 9.92 (s, 1H), 9.17 (s, 1H), 8.29 (s, 1H), 7.94 (s, 1H), 7.20 (dt, J = 22.2, 7.1 Hz, 2H), 7.08 (t, J = 7.6 Hz, 1H), 6.90 (s, 1H), 6.72 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 16.9, 2.0 Hz, 1H), 6.13 (s, 1H), 5.76 (dd, J = 10.1,2.0 Hz, 1H), 5.68 (t, J = 7.2 Hz, 1H), 4.30 (td, J = 7.7, 4.2 Hz, 2H), 4.05 (d, J = 7.8 Hz, 2H), 3.81 (s, 3H), 3.28 (d, J = 3.8 Hz, 1H), 3.20 (d, J = 11.4 Hz, 2H), 2.92 (dd, J = 8.4, 4.3 Hz, 1H), 2.75 (d, J = 4.9 Hz, 6H), 2.26 (d, J = 1.9 Hz, 4H), 2.11 (d, J = 9.6 Hz, 2H), 2.01 (t, J = 12.0 Hz, 2H),; 576.5 [M + H]⁺ 1.27 865

N-(5-((6-((R)- 3-(3,4- dichloro-2- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- (dimethylami no)-[1,4′- bipiperidine]- 1′-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.04 (s, 1H), 9.23 (s, 1H), 8.31 (s, 1H), 7.92 (s, 1H), 7.53 (dd, J = 8.6, 1.5 Hz, 1H), 7.39 (t, J = 8.1 Hz, 1H), 6.90 (s, 1H), 6.74 (dd, J = 17.0, 10.3 Hz, 1H), 6.31-6.12 (m, 2H), 5.77-5.60 (m, 2H), 4.32 (d, J = 4.0 Hz, 1H), 4.05 (d, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.61 (s, 1H), 3.50 (s, 1H), 3.35 (d, J = 3.4 Hz, 1H), 3.23 (d, J ~ 11.1 Hz, 2H), 3.13 (s, 1H), 3.00-2.89 (m, 1H), 2.86- 2.76 (m, 2H), 2.72 (d, J = 4.8 Hz, 6H), 2.35-2.26 (m, 5H), 2.17 (d, J = 9.4 Hz, 2H), 2.12-2.02 (m, 2H), 1.62 (d, J = 2.7 Hz, 1H), 1.49-1.36 (m, 1H),; 613.3 [M + H]⁺ 1.27 866

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.48 (s, 1H), 8.36 (s, 1H), 7.40 (d, J = 8.4 Hz, 2H), 7.30 (d, J = 8.4 Hz, 2H), 6.96 (s, 1H), 6.75 (s, 1H), 6.69 (s, 1H), 6.29 (dt, J = 17.0, 13.1 Hz, 2H), 5.74 (d, J = 11.0 Hz, 1H), 5.66 (d, J = 8.5, 4.5 Hz, 1H), 4.47 (s, 1H), 4.18-4.01 (m, 3H), 3.85 (s, 3H), 3.69 (d, J = 7.9 Hz, 1H), 3.21 (d, J = 10.2 Hz, 1H), 3.04 (dd, J = 10.6, 5.0 Hz, 2H), 2.81-2.71 (m,4H), 2.67 (d, J = 10.6, Hz, 1H), 2.57 (d, J = 10.0 Hz, 1H), 2.38-2.27 (m, 1H), 2.09-1.90 (m, 4H), 1.83 (dd, J = 33.8, 9.8 Hz, 3H), 1.26 (s, 1H); 632.5 [M + H]⁺ 1.23 867

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6- ((R)-3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.86 (s, 1H), 8.48 (s, 1H), 8.35 (s, 1H), 7.40 (d, J = 8.4 Hz, 2H), 7.30 (d, J = 8.5 Hz, 2H), 6.97 (s, 1H), 6.76 (s, 1H), 6.70 (s, 1H), 6.35 (d, J = 16.3 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (d, J = 11.1 Hz, 1H), 5.66 (dd, J = 8.6, 4.5 Hz, 1H), 4.44 (s, 1H), 4.18-4.03 (m, 3H), 3.85 (s, 3H), 3.77 (s, 1H), 3.66 (d, J = 7.4 Hz, 1H), 3.14 (d, J = 9.0 Hz, 1H), 3.02 (d, J = 11.7 Hz, 2H), 2.76 (ddd, J = 12.1,9.6, 3.3 Hz, 3H), 2.63-2.54 (m, 1H), 2.51 (d, J = 9.9 Hz, 1H), 2.38-2.26 (m, 1H), 2.04 (d, J = 12.4 Hz, 1H), 1.92 (d, J = 10.0 Hz, 2H), 1.83 (d, J = 9.8 Hz, 1H), 1.74-1.60 (m, 2H), 1.25 (s, 1H); 632.4 [M + H]⁺ 1.38 868

N-(5-((6- ((R)-3-(4- chlorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- ((2S,6R)-2,6- dimethylmor pholino)piper idine-1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.43 (s, 1H), 8.36 (s, 1H), 7.40 (d, J = 8.5 Hz, 2H), 7.30 (d, J = 8.4 Hz, 1H), 6.94 (s, 1H), 6.72 (d, J = 19.8 Hz, 2H), 6.29 (dt, J = 16.9, 13.2 Hz, 2H), 5.74 (d, J = 11.0 Hz, 1H), 5.66 (dd, J = 8.6, 4.5 Hz, 1H), 4.18-4.02 (m, 2H), 3.84 (s, 3H), 3.77- 3.65 (m, 2H), 3.06 (d, J = 11.0 Hz, 2H), 2.88 (d, J = 10.8 Hz, 2H), 2.80-2.66 (m, 3H), 2.39- 2.24 (m, 2H), 2.07 (d, J = 12.5 Hz, 2H), 1.90 (t, J = 10.6 Hz, 2H), 1.66 (dd, J = 21.1, 11.0 Hz, 2H), 1.26 (s, 1H), 1.20 (d, J = 6.3 Hz, 6H); 648.4 [M + H]⁺ 1.21 869

N-(5-((6- ((R)-3-(4- fluprophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- (dimethylami no)-[1,4′- bipiperidine]- 1′-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.97 (s, 1H), 9.19 (s, 1H), 8.30 (s, 1H), 7.93 (s, 1H), 7.43- 7.37 (m, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.90 (s, 1H), 6.72 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 17.0, 2.0 Hz, 1H), 6.07 (s, 1H), 5.76 (dd, J = 10.1,2.0Hz, 1H), 5.52 (t, J = 6.9 Hz, 1H), 4.31 (d, J = 4.5 Hz, 1H), 4.05 (d, J = 7.7 Hz, 2H), 3.80 (s, 3H), 3.77 (s, 2H), 3.69 (s, 4H), 3.62- 3.58 (m, 1H), 3.47 (d, J = 5.4 Hz, 2H), 3.22 (d, J = 11.5 Hz, 2H), 2.91 (d, J = 7.6 Hz, 1H), 2.80 (t, J = 11.5 Hz, 2H), 2.35-2.28 (m, 1H), 2.21- 2.04 (m, 4H), 1.32 (d, J = 6.5 Hz, 6H),; 645.4 [M + H]⁺ 1.08 870

N-(2-(4- (dimethyl- amino)-[1,4′- bipiperidine]- 1′-yl)-5-((6- ((R)-3-(4- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 10.34 (s, 1H), 9.31 (s, 1H), 8.34 (s, 1H), 7.85 (s, 1H), 7.40 (dd, J = 8.5, 5.4 Hz, 2H), 7.20 (t, J = 8.8 Hz, 2H), 6.91 (s, 1H), 6.79 (dd, J = 17.0, 10.2 Hz, 1H), 6.25 (dd, J = 16.9, 1.9 Hz, 1H), 6.06(s, 1H), 5.76 (dd, J = 9.4, 2.5 Hz, 1H), 5.54 (dd, J = 8.4, 5.3 Hz, 1H), 4.35-4.30 (m, 1H), 4.08 (d, J = 7.7 Hz, 1H), 3.81 (s, 3H), 3.62 (d, J = 11.6 Hz, 2H), 3.53 (s, 1H), 3.37 (t, J = 3.5 Hz, 1H), 3.24 (d, J = 11.1 Hz, 2H), 3.18-3.08 (m, 2H), 2.98-2.89 (m, 1H), 2.86-2.77 (m, 2H), 2.71 (d, J = 4.8 Hz, 6H), 2.37-2.24 (m, 5H), 2.15 (d, J = 17.8 Hz, 4H),; 645.4 [M + H]⁺ 1.01 871

N-(2-(4- ((1R,5S)-8- oxa-3- azabicyclo[ 3.2.1]octan- 3-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- chloro-4- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.23 (s, 1H), 7.89 (s, 1H), 7.52 (dd, J = 6.9, 1.8 Hz, 1H), 7.39-7.32 (m, 1H), 7.26 (t, J = 8.8 Hz, 1H), 7.19 (s, 1H), 6.68 (dd, J = 16.9, 10.2 Hz, 1H), 6.48 (d, J = 16.7 Hz, 1H), 6.09 (s, 1H), 5.89 (d, J = 10.7 Hz, 1H), 5.50 (t, J = 6.9 Hz, 1H), 4.57 (s, 2H), 4.44 (td, J = 7.6, 4.1 Hz, 1H), 4.18 (dd, J = 15.1,8.2 Hz, 1H), 3.92 (s, 3H), 3.54 (d, J = 12.3 Hz, 4H), 3.31 (s, 5H), 3.05 (q, J = 12.1 Hz, 1H), 2.49-2.23 (m, 7H), 2.17-2.11 (m, 2H),; 664.5 [M + H]⁺ 1.27 872

N-(2-(4-(6- azaspiro[2. 5]octan-6- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3- chloro-4- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide 662.6 [M + H]⁺ 1.37 873

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- (4-((S)-2- methylmorp holino)piper idine-1- yl)phenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.88 (s, 1H), 8.20 (s, 1H), 7.85 (s, 1H), 7.34 (d, J = 6.7 Hz, 1H), 7.14 (d, J = 11.8 Hz, 2H), 6.62 (s, 1H), 6.38 (d, J = 15.6 Hz, 1H), 6.03 (s, 1H), 5.76 (d, J = 8.5 Hz, 1H), 5.57 (s, 1H), 4.36 (s, 4H), 4.00 (d, J = 48.1 Hz, 1H), 3.54-3.32 (m, 3H), 2.91 (d, J = 20.6 Hz, 4H), 2.72 (s, 2H), 2.43 (s, 2H), 1.77 (s, 2H), 1.57 (s, 1H), 1.27 (s, 3H), 1.21 (t, J = 7.0 Hz, 1H),; 652.3 [M + H]⁺ 1.26 874

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- (4-((R)-2- methylmorp holino)piper idine-1- yl)phenyl)ac rylamide 652.3 [M + H]⁺ 1.3 875

N-(5-((6- ((R)-3-(2,3- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- ((3aR,6aR)- 1-methylhexa hydropyrrol o[3,4- b]pyrrole- 5(1 H)- yl)phenyl)ac rylamide ¹H NMR (400 MHz, CDCl₃) δ 8.82 (s, 1H), 8.72 (s, 1H), 8.35 (s, 1H), 7.36 (t, J = 6.6 Hz, 1H), 7.09-6.99 (m, 2H), 6.86 (s, 1H), 6.73 (s, 1H), 6.68 (s, 1H), 6.42 (d, J = 16.9 Hz, 1H), 6.34- 6.23 (m, 1H), 5.93 (dd, J = 8.6, 4.4 Hz, 1H), 5.74-5.67 (m, 1H), 4.17-4.03 (m, 2H), 3.83 (s, 3H), 3.24-3.14 (m, 1H), 3.11-2.99 (m, 2H), 2.94-2.80 (m, 4H), 2.61-2.50 (m, 1H), 2.43 (s, 3H), 2.35-2.25 (m, 2H), 2.21-2.13 (m, 1H), 1.65-1.53 (m, 1H); 578.46 [M + H]⁺ 1.22 876

N-(5-((6- ((R)-3-(2,3- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- ((3aS,6aS)- 1-methylhexa hydropyrrol o[3,4- b]pyrrole- 5(1 H)- yl)phenyl)ac rylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.72 (s, 1H), 8.35 (s, 1H), 7.36 (t,J = 6.9 Hz, 1H), 7.10-6.98 (m, 2H), 6.88 (s, 1H), 6.71 (s, 1H), 6.69 (s, 1H), 6.42 (d, J = 16.0 Hz, 1H), 6.35- 6.24 (m, 1H), 5.93 (dd, J = 8.6, 4.5 Hz, 1H), 5.74-5.67 (m, 1H), 4.13 (td, J = 8.0, 4.3 Hz, 1H), 4.05 (q, J = 8.1 Hz, 1H), 3.83(s, 3H), 3.22- 3.05 (m, 2H), 2.98-2.80 (m, 5H), 2.68-2.58 (m, 1H), 2.45 (s, 3H), 2.36-2.27 (m, 2H), 2.24- 2.14(m, 1H), 1.76-1.66 (m, 1H); 578.46 [M + H]⁺ 1.22 877

N-(5-((6- ((R)-3-(2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- (4-(5- methyl-2,5- diazabicycl o[2.2.1]hep- tane-2- yl)piperidine- 1-yl)phenyl)ac rylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.47 (s, 1H), 8.37 (s, 1H), 7.35-7.29 (m, 1H), 7.03- 6.86 (m, 3H), 6.76 (s, 2H), 6.35 (d, J = 16.3 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 8.6, 4.2 Hz, 1H), 5.75-5.69 (m, 1H), 4.16-4.03 (m, 2H), 3.86 (s, 3H), 3.08-2.99 (m, 3H), 2.87-2.71 (m, 4H), 2.64-2.56 (m, 2H), 2.49 (s, 3H), 2.34-2.24 (m, 2H), 2.07- 2.02 (m, 1H), 1.94-1.83 (m, 3H), 1.72-1.63 (m, 2H); 647.56 [M + H]⁺ 1.14 878

N-(5-((6- ((R)-3-(2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-2- ((3S,5R)-4- ethyl-3,5- dimethylpip- erazine-1- yl)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.90 (s, 1H), 8.57 (s, 1H), 8.37 (s, 1H), 7.35-7.29 (m, 1H), 7.03- 6.95 (m, 2H), 6.93-6.86 (m, 1H), 6.79 (s, 1H), 6.77 (s, 1H), 6.37 (d, J = 16.2 Hz, 1H), 6.27 (dd, J = 16.9, 10.0 Hz, 1H), 5.90 (dd, J = 8.7, 4.2 Hz, 1H), 5.75 (dd, J = 10.0, 1.2 Hz, 1H), 4.16-4.04 (m, 2H), 3.84 (s, 3H), 3.06- 2.96 (m, 2H), 2.88-2.78 (m, 5H), 2.70-2.59 (m, 1H), 2.34-2.23 (m, 1H), 1.18-1.10 (m, 7H), 1.00 (t, J = 6.9 Hz, 3H); 594.52 [M + H]⁺ 1.26 879

N-(2-((S)-4- cyclopropyl- 2-methylpiper- azine-1-yl)- 5-((6-((R)-3- (2,5- difluorophe nyl)isoxazol idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.02 (s, 1H), 8.97 (s, 1H), 8.39 (s, 1H), 7.36-7.28 (m, 1H), 7.06 (s, 1H), 7.04-6.96 (m, 1H), 6.94-6.85 (m, 1H), 6.82 (s, 1H), 6.80 (s, 1H), 6.38-6.24 (m, 2H), 5.90 (dd, J = 8.6, 4.2 Hz, 1H), 5.74 (dd, J = 9.6, 1.8 Hz, 1H), 4.17-4.07 (m, 2H), 3.80 (s, 3H), 3.14-3.00 (m, 3H), 2.90-2.78 (m, 3H), 2.52-2.44 (m, 1H), 2.34-2.25 (m, 1H), 2.23- 2.16 (m, 1H), 1.72-1.66 (m, 1H), 0.82 (d, J = 6.2 Hz, 3H), 0.56-0.44 (m, 4H); 592.45 [M + H]⁺ 1.30 880

N-(2-((R)- 4-cycloprop yl-2- methylpip- erazine- 1-yl)-5- ((6-((R)- 3-(2,5- difluoroph enyl)iso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.05 (s, 1H), 8.98 (s, 1H), 8.39 (s, 1H), 7.36-7.28 (m, 1H), 7.06 (s, 1H), 7.03-6.97 (m, 1H), 6.93- 6.87 (m, 1H), 6.82 (s, 2H), 6.38-6.24 (m, 2H), 5.91 (dd, J = 8.7, 4.2 Hz, 1H), 5.74 (dd, J = 9.7, 1.8 Hz, 1H), 4.18-4.06 (m, 2H), 3.81 (s, 3H), 3.15-2.99 (m, 3H), 2.91-2.77 (m, 3H), 2.52-2.45 (m, 1H), 2.35-2.25 (m, 1H), 2.23-2.16 (m, 1H), 1.73-1.66 (m, 1H), 0.83 (d, J = 6.2 Hz, 3H), 0.57-0.44 (m, 4H); 592.45 [M + H]⁺ 1.31 881

N-(5-((6- ((R)-3- (2,5- difluoroph enyl)iso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-(4- (oxetane- 3-yl)piper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.49 (s, 1H), 8.38 (d, J = 0.9 Hz, 1H), 7.32 (ddd, J = 9.1, 5.9, 3.2 Hz, 1H), 7.05- 6.95 (m, 2H), 6.90 (ddd, J = 8.8, 7.3, 3.6 Hz, 1H), 6.82 (s, 1H), 6.77 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 17.0, 10.0 Hz, 1H), 5.90 (dd, J = 8.7, 4.4 Hz, 1H), 5.74 (dd, J = 9.9, 1.5 Hz, 1H), 4.72 (t, J = 6.5 Hz, 2H), 4.67 (t, J = 6.2 Hz, 2H), 4.18-4.02 (m, 2H), 3.85 (s, 3H), 3.66-3.55 (m, 1H), 3.03-2.90 (m, 4H), 2.89-2.76 (m, 1H), 2.64-2.43 (m, 4H), 2.36-2.23 (m, 1H),; 594.4 [M + H]⁺ 1.24 882

N-(5-((6- ((R)-3- (2,5- difluoroph enyl)iso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- 2-((2- (dimethyl amino)eth yl)(methyl)- amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.09 (s, 1H), 8.96 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.33 (ddd, J = 9.1, 5.9, 3.2 Hz, 1H), 7.05- 6.95 (m, 2H), 6.95-6.84 (m, 1H), 6.83-6.78 (m, 2H), 6.40 (dd, J = 16.9, 2.1 Hz, 1H), 6.34 (d, J = 9.6 Hz, 1H), 5.90 (dd, J = 8.9, 4.3 Hz, 1H), 5.71-5.64 (m, 1H), 4.19-4.07 (m, 2H), 3.85 (s, 3H), 2.93-2.85 (m, 2H), 2.85-2.77 (m, 1H), 2.72 (s, 3H), 2.41-2.33 (m, 2H), 2.30 (s, 6H), 2.28-2.24 (m, 1H),; 554.4 [M + H]⁺ 1.25 883

N-(5-((6- ((R)-3- (2,3-difluoroph enyl)iso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- 2-((S)- 3,4- dimethylp iperazine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.54 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.40-7.32 (m, 1H), 7.12-6.99 (m, 2H), 6.97 (s, 1H), 6.77 (d, J = 16.1 Hz, 2H), 6.37 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 16.9,10.0 Hz, 1H), 5.93 (dd, J = 8.9, 4.5 Hz, 1H), 5.75 (dd, J = 10.0, 1.5 Hz, 1H), 4.19-4.11 (m, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.03-2.78 (m, 5H), 2.64 (dd, J = 11.4, 9.5 Hz, 1H), 2.52-2.42 (m, 1H), 2.39 (s, 3H), 2.38-2.25 (m, 2H), 1.14 (d, J = 6.3 Hz, 3H),; 566.4 [M + H]⁺ 1.22 884

N-(5-((6- ((R)-3- (2,3-difluoroph enyl)iso- xazolidine- 2-yl)pyrimidine-4- yl)amino)- 2-((R)- 3,4- dimethylp iperazine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.54 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.40-7.31 (m, 1H), 7.12-6.99 (m, 2H), 6.97 (s, 1H), 6.77 (d, J = 14.8 Hz, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.9, 4.6 Hz, 1H), 5.75 (dd, J = 10.0, 1.5 Hz, 1H), 4.19-4.02 (m, 2H), 3.84 (s, 3H), 3.06-2.93 (m, 2H), 2.93- 2.79 (m, 3H), 2.61 (dd, J = 11.5, 9.5 Hz, 1H), 2.47 (td, J = 11.5, 11.0, 3.0 Hz, 1H), 2.40 (s, 3H), 2.38-2.25 (m, 2H), 1.14 (d, J = 6.3 Hz, 3H),; 566.4 [M + H]⁺ 1.23 885

N-(5-((6- ((R)-3- (2,3-difluoro- phenyl)- isoxazoli- dine-2- yl)pyrimi dine-4- yl)amino)- -2-((R)- 2,4- dimethyl piper- azine-1-yl)- 4-methoxy phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.05 (s, 1H), 8.92 (s, 1H), 8.39 (d, J = 1.0 Hz, 1H), 7.40-7.32 (m, 1H), 7.12-6.99 (m, 3H), 6.85- 6.77 (m, 2H), 6.35 (dd, J = 16.9, 1.7 Hz, 1H), 6.26 (dd, J = 17.0, 9.8 Hz, 1H), 5.94 (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (dd, J = 9.8, 1.7 Hz, 1H), 4.16 (td, J = 8.1,4.3 Hz, 1H), 4.09 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.19-3.06 (m, 1H), 3.02-2.92 (m, 2H), 2.91-2.77 (m, 3H), 2.39 (s, 3H), 2.37-2.21 (m, 2H), 1.98 (t, J = 10.4 Hz, 1H), 0.83 (d, J = 6.2 Hz, 3H),; 566.4 [M + H]⁺ 1.27 886

N-(5-((6- ((R)-3- (2,3-difluoro- phenyl)- isoxazoli- dine-2- yl)pyrimi dine-4- yl)amino)- -2-((S)- 2,4- dimethyl piper- azine-1-yl)- 4-methoxy phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.03 (s, 1H), 8.91 (s, 1H), 8.39 (d, J = 1.0 Hz, 1H), 7.40-7.32 (m, 1H), 7.12-6.99 (m, 3H), 6.85- 6.77 (m, 2H), 6.35 (dd, J = 16.9, 1.7 Hz, 1H), 6.26 (dd, J = 16.9, 9.8 Hz, 1H), 5.94 (dd, J = 8.8, 4.5 Hz, 1H), 5.74 (dd, J = 9.8, 1.8 Hz, 1H), 4.21-4.04 (m, 2H), 3.83 (s, 3H), 3.19- 3.07 (m, 1H), 3.01-2.78 (m, 5H), 2.38 (s, 3H), 2.37-2.21 (m, 2H), 1.98 (t, J = 10.4 Hz, 1H), 0.82 (d, J = 6.2 Hz, 3H),; 566.4 [M + H]⁺ 1.24 887

N-(2-(8- oxa-3- azabicyc lo[3.2.1] octan-3- yl)-5-((6- ((R)-3- (2,3-difluoro- phenyl)- isoxazoli- dine-2- yl)pyrimi dine-4- yl)amino)- -4- methoxy phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.60 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.39-7.31 (m, 1H), 7.12-6.99 (m, 2H), 6.98 (s, 1H), 6.82 (s, 1H), 6.76 (s, 1H), 6.41 (dd, J = 16.9, 1.4 Hz, 1H), 6.26 (dd, J = 16.9, 10.2 Hz, 1H), 5.93 (dd, J = 8.7, 4.6 Hz, 1H), 5.77 (dd, J = 10.1, 1.4 Hz, 1H), 4.49-4.44 (m, 2H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.12 (td, J = 11.2, 2.1 Hz, 2H), 2.86 (dtd, J = 12.5, 8.1,4.1 Hz, 1H), 2.65 (d, J = 11.2 Hz, 2H), 2.32 (dtd, J = 12.7, 8.4, 5.3 Hz, 1H), 2.17-2.10 (m, 2H), 2.10-2.02 (m, 2H),; 565.4 [M + H]⁺ 1.55 888

N-(5-((6- ((R)-3- (2,3-difluoro- phenyl)- isoxazoli- dine-2- yl)pyrimi dine-4- yl)amino)- -4- methoxy- 2-((S)- 2-methylm orpholin o)phenyl)acrylam ide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.51 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.40-7.31 (m, 1H), 7.12-7.00 (m, 2H), 6.98 (s, 1H), 6.76 (d, J = 1.6 Hz, 2H), 6.37 (dd, J = 17.0, 1.5 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.7, 4.6 Hz, 1H), 5.76 (dd, J = 10.0, 1.5 Hz, 1H), 4.20-4.12 (m, 1H), 4,12- 4.00 (m, 2H), 3.87 (s, 3H), 3.83-3.72 (m, 2H), 2.94-2.75 (m, 4H), 2.60 (dd, J = 11.4, 9.7 Hz, 1H), 2.38-2.25 (m, 1H), 1.24 (d, J = 6.3 Hz, 3H),; 553.4 [M + H]⁺ 1.58 889

N-(5-((6- ((R)-3- (2,3-difluoro- phenyl)- isoxazoli- dine-2- yl)pyrimi dine-4- yl)amino)- -4- methoxy- 2-((R)- 2-methylm orpholin o)phenyl)acrylam ide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1H), 8.51 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.40-7.31 (m, 1H), 7.12-7.01 (m, 2H), 6.99 (s, 1H), 6.76 (d, J = 2.5 Hz, 2H), 6.37 (dd, J = 16.9, 1.5 Hz, 1H), 6.26 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.8, 4.6 Hz, 1H), 5.76 (dd, J = 10.0, 1.5 Hz, 1H), 4.20-4.11 (m, 1H), 4.11- 4.00 (m, 2H), 3.87 (s, 3H), 3.85-3.74 (m, 2H), 2.97-2.74 (m, 4H), 2.57 (dd, J = 11.6, 9.8 Hz, 1H), 2.38-2.25 (m, 1H), 1.24 (d, J = 6.3 Hz, 3H),; 553.4 [M + H]⁺ 1.58 890

N-(5-((6- ((R)-3- (3,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-((3aR,6aR)- 1-methylhex ahydropyrr olo[3,4- b]pyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.18 (s, 1H), 8.58 (s, 1H), 8.15 (s, 1H), 7.80 (s, 1H), 7.15- 7.07 (m, 3H), 6.67 (s, 1H), 6.43 (dd, J = 17.1, 10.2 Hz, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.1,2.0 Hz, 1H), 5.55 (dd, J = 8.7, 5.0 Hz, 1H), 4.12 (td, J = 7.9, 3.9 Hz, 1H), 3.79 (s, 4H), 2.99-2.82 (m, 4H), 2.76 (ddp, J = 11.9, 7.7, 3.7 Hz, 3H), 2.36-2.17 (m, 6H), 2.06- 1.95 (m, 1H), 1.84 (s, 1H), 1.63 (tt, J = 12.3, 6.9 Hz, 2H), 1.23 (s, 1H),; 578.4 [M + H]⁺ 1.24 891

N-(5-((6- ((R)-3- (3,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-((3aS,6aS)- 1-methylhex ahydropyrr olo[3,4- b]pyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.19 (s, 1H), 8.58 (s, 1H), 8.15 (d, J = 0.9 Hz, 1H), 7.80 (s, 1H), 7.15-7.06 (m, 5H), 6.67 (s, 1H), 6.44 (dd, J = 17.1, 10.2 Hz, 1H), 6.21 (dd, J = 17.1, 1.9 Hz, 2H), 5.72 (dd, J = 10.2, 2.0 Hz, 1H), 5.55 (dd, J = 8.7, 5.0 Hz, 2H), 4.12 (td, J = 7.9, 3.9 Hz, 2H), 3.79 (s, 4H), 3.00-2.88 (m, 4H), 2.76 (dp, J = 8.4, 4.2 Hz, 4H), 2.31-2.21 (m, 8H), 2.00 (q, J = 9.5, 6.8 Hz, 2H), 1.87 (s, 5H), 1.63 (tt, J = 12.4, 6.9 Hz, 2H), 1.23 (s, 2H),; 578.5 [M + H]⁺ 1.25 892

N-(5-((6- ((R)-3- (2,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-((3aR,6aR)- 1-methylhex ahydropyrr olo[3,4- b]pyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.19 (S, 1H), 8.60 (s, 1H), 8.14 (s, 1H), 7.79 (s, 1H), 7.29 (td, J = 9.3, 4.5 Hz, 2H), 7.18 (tdt, J = 11.9, 7.4, 3.3 Hz, 3H), 6.67 (s, 1H), 6.44 (dd, J = 17.1, 10.2 Hz, 1H), 6.21 (dd, J = 17.1, 1.9 Hz, 1H), 5.71 (td, J = 9.6, 9.1, 3.5 Hz, 2H), 4.16 (td, J = 7.9, 3.8 Hz, 1H), 3.79 (s, 3H), 3.00-2.82 (m, 5H), 2.77 (tt, J = 8.4, 4.2 Hz, 3H), 2.37-2.20 (m, 6H), 2.00 (q, J = 9.4, 7.2 Hz, 2H), 1.78 (s, 3H), 1.63 (tt, J = 11.4, 6.9 Hz, 2H), 1.23 (s, 3H),; 578.4 [M + H]⁺ 1.24 893

N-(5-((6- ((R)-3- (2,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 4-methoxy- 2-((3aS,6aS)- 1-methylhex ahydropyrr olo[3,4- bjpyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz , DMSO-d₆) δ 9.20 (s, 1H), 8.60 (s, 1H), 8.14 (d, J = 0.9 Hz, 1H), 7.80 (s, 1H), 7.29 (td, J = 9.2, 4.4 Hz, 1H), 7.24-7.13 (m, 3H), 6.67 (s, 1H), 6.44 (dd, J = 17.1, 10.2 Hz, 1H), 6.21 (dd, J = 17.1, 1.9 Hz, 1H), 5.71 (td, J = 9.7, 3.5 Hz, 2H), 4.16 (td, J = 7.9, 3.9 Hz, 2H), 3.79 (s, 3H), 3.01-2.83 (m, 5H), 2.78 (qd, J = 8.2, 4.0 Hz, 3H), 2.35-2.11 (m, 7H), 2.00 (q, J = 9.6, 6.8 Hz, 1H), 1.89 (s, 4H), 1.63 (tt, J = 11.9, 6.9 Hz, 1H), 1.23 (s, 1H),; 578.4 [M + H]⁺ 1.23 894

N-(2-(4-(4- (sec- butyl)piper- azine-1-yl)piperidine- 1-yl)-5-((6- ((R)-3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.43 (s, 1H), 8.33 (d, J = 1.0 Hz, 1H), 7.17 (s, 1H), 6.99 (h, J = 4.4 Hz, 2H), 6.74 (s, 1H), 6.68 (s, 1H), 6.33 (d, J = 1.7 Hz, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 2H), 5.73 (dd, J = 9.8, 1.7 Hz, 1H), 5.65 (dd, J = 8.7, 4.5 Hz, 1H), 4.07-4.00 (m, 1H), 3.83 (s, 3H), 3.05 (d, J = 11.2 Hz, 2H), 2.77 (d, J = 3.0 Hz, 8H), 2.67-2.58 (m, 1H), 2.42 (td, J = 11.9, 11.4, 6.2 Hz, 1H), 2.33 (q, J = 4.2 Hz, 2H), 2.11- 2.05 (m, 2H), 1.72-1.64 (m, 3H), 1.28 (d, J = 6.7 Hz, 5H), 1.07 (d, J = 6.5 Hz, 3H), 0.92 (t, J = 7.4 Hz, 3H),; 677.6 [M + H]⁺ 1.23 895

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- ethylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (s, 1H), 8.16 (s, 1H), 7.34 (tt, J = 8.5, 6.2 Hz, 1H), 6.96 (dd, J = 15.5, 7.2 Hz, 3H), 6.56 (dd, J = 17.0, 10.3 Hz, 1H), 6.42-6.31 (m, 2H), 5.81 (dd, J = 10.2, 1.6 Hz, 1H), 5.76 (dd, J = 8.9, 7.0 Hz, 1H), 4.34 (td, J = 7.9, 2.5 Hz, 1H), 3.97-3.90 (m, 1H), 3.89 (s, 3H), 3.11 (s, 4H), 2.93 (q, J = 7.3 Hz, 2H), 2.80 (dddd, J = 11.9, 9.1, 6.5, 2.5 Hz, 1H), 2.59-2.48 (m, 1H), 1.98 (s, 4H), 1.30 (t, J = 7.3 Hz, 3H); 566.4 [M + H]⁺ 1.12 896

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy-2- (4-(4- methylpiper- azine-1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.28 (s, 1H), 8.16 (s, 1H), 7.34 (tt, J = 8.5, 6.2 Hz, 1H), 6.97 (t, J = 8.4 Hz, 2H), 6.92 (s, 1H), 6.53 (dd, J = 17.0, 10.2 Hz, 1H), 6.41-6.31 (m, 2H), 5.81 (d, J = 10.3 Hz, 1H), 5.76 (dd, J = 8.9, 7.0 Hz, 1H), 4.34 (td, J = 7.9, 2.4 Hz, 1H), 3.95-3.89 (m, 1H), 3.88 (s, 3H), 3.49- 3.36 (m, 2H), 3.00 (t, J = 4.8 Hz, 4H), 2.85 (qq, J = 6.1,2.9 Hz, 6H), 2.78 (dt, J = 9.9, 3.0 Hz, 1H), 2.74 (s, 3H), 2.63 (tq, J = 11.7, 4.2 Hz, 1H), 2.57-2.48 (m, 1H), 2.15 (dd, J = 12.8, 3.1 Hz, 2H), 1.84 (td, J = 13.8, 13.2, 6.9 Hz, 2H); 635.5 [M + H]⁺ 1.00 897

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy-2- (4- morpholinopip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.15 (s, 1H), 8.03 (s, 1H), 7.22 (tt, J = 8.4, 6.2 Hz, 1H), 6.85 (t, J = 8.4 Hz, 2H), 6.78 (s, 1H), 6.44 (dd, J = 17.0, 10.3 Hz, 1H), 6.31-6.17 (m, 2H), 5.72-5.66 (m, 1H), 5.63 (dd, J = 8.9, 7.0 Hz, 1H), 4.22 (td, J = 7.9, 2.4 Hz, 1H), 3.79 (td, J = 9.0, 8.3, 6.6 Hz, 1H), 3.74 (s, 3H), 3.70 (t, J = 4.7 Hz, 4H), 3.04 (d, J = 11.7 Hz, 2H), 2.83-2.60 (m, 7H), 2.44 (ttd, J = 16.8, 11.3, 9.5, 5.7 Hz, 2H), 1.99 (dd, J = 12.6, 3.5 Hz, 2H), 1.72-1.62 (m, 2H); 622.4 [M + H]⁺ 1.14 898

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy-2- ((3aR,6aR)- 1-methylhexah ydropyrrolo[3 ,4-b]pyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.04 (s, 1H), 9.94 (s, 1H), 8.25 (s, 1H), 7.71 (s, 1H), 7.46-7.36 (m, 1H), 7.17-7.03 (m, 3H), 6.86 (s, 1H), 6.27-6.21 (m, 1H), 5.98 (s, 1H), 5.74-5.64 (m, 2H), 4.47 (d, J = 2.2 Hz, 1H), 4.06-3.99 (m, 2H), 3.78 (s, 3H), 3.69 (d, J = 11.7 Hz, 1H), 3.53 (d, J = 6.7 Hz, 1H), 3.15- 3.01 (m, 4H), 2.86 (d, J = 5.0 Hz, 5H), 2.44 (dd, J = 12.1, 7.8 Hz, 2H), 1.83 (dd, J = 13.5, 6.5 Hz, 1H),; 578.5 [M + H]⁺ 1.14 899

N-(5-((6-((S)- 3-(2,6- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-((3aS,6aS)- 1-methylhexah ydropyrrolo[3 ,4-bjpyrrole- 5(1 H)- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.04 (s, 1H), 9.97 (s, 1H), 8.26 (s, 1H), 7.71 (s, 1H), 7.42 (tt, J = 8.3, 6.3 Hz, 1H), 7.17-7.09 (m, 2H), 7.08-7.01 (m, 1H), 6.86 (s, 1H), 6.25 (dd, J = 17.0, 2.1 Hz, 1H), 5.96 (s, 1H), 5.72 (dt, J = 11.8, 8.7 Hz, 2H), 4.47 (d, J = 2.3 Hz, 1H), 4.04-3.99 (m, 2H), 3.78 (s, 3H), 3.69 (d, J = 11.7 Hz, 1H), 3.55- 3.49 (m, 1H), 3.39 (s, 1H), 3.16-2.98 (m, 5H), 2.95-2.89 (m, 1H), 2.86 (d, J = 4.9 Hz, 2H), 2.47-2.35 (m, 2H), 1.88-1.77 (m, 1H),; 578.5 [M + H]⁺ 1.13 900

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-((S)-3,4- dimethylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.32 (s, 1H), 8.02 (s, 1H), 7.35 (d, J = 6.8 Hz, 1H), 7.19-7.10 (m, 2H), 6.80 (s, 2H), 6.40 (d, J = 16.1 Hz, 1H), 6.24 (s, 1H), 5.81 (d, J = 9.1 Hz, 1H), 5.56 (s, 1H), 4.24 (d, J = 62.7 Hz, 6H), 3.75 (s, 4H), 3.48 (d, J = 7.3 Hz, 3H), 2.92 (s, 4H), 2.68 (s, 3H), 2.41 (s, 3H), 1.31-1.13 (m, 6H),; 665.6 [M + H]⁺ 1.23 901

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4-((R)- 3,4- dimethylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.18 (s, 1H), 7.96 (s, 1H), 7.35 (d, J = 6.8 Hz, 1H), 7.21-7.10 (m, 3H), 6.69 (dd, J = 16.9, 10.2 Hz, 1H), 6.42 (d, J = 17.0 Hz, 1H), 6.14 (s, 1H), 5.81 (d, J = 10.2 Hz, 1H), 5.55 (d, J = 7.7 Hz, 1H), 4.36 (s, 1H), 4.29 (s, 2H), 4.19 (d, J = 7.6 Hz, 2H), 3.98 (s, 1H), 3.86 (s, 3H), 3.65 (s, 4H), 3.49 (s, 2H), 2.92 (s, 3H), 2.60 (s, 3H), 2.46-2.40 (m, 1H), 1.77 (s, 1H), 1.62 (d, J = 6.3 Hz, 3H), 1.27- 1.18 (m, 3H),; 665.6 [M + H]⁺ 1.24 902

N-(2- ((1S,4S)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.11 (s, 1H), 7.54 (dd, J = 7.1, 2.2 Hz, 1H), 7.47 (s, 1H), 7.38 (ddd, J = 7.3, 4.5, 2.2 Hz, 1H), 7.20 (t, J = 8.8 Hz, 1H), 6.54 (s, 1H), 6.46 (dd, J = 17.0, 10.1 Hz, 1H), 6.34 (dd, J = 17.1, 1.8 Hz, 1H), 6.29 (s, 1H), 5.77 (dd, J = 10.1, 1.8 Hz, 1H), 5.53-5.48 (m, 1H), 4.58 (s, 1H), 4.36 (s, 1H), 4.14 (dd, J = 8.0, 4.3 Hz, 1H), 4.10(d, J = 7.6 Hz, 1H), 3.93 (q, J = 8.0 Hz, 1H), 3.85 (s, 4H), 3.51 (d, J = 9.6 Hz, 1H), 3.10 (d, J = 9.6 Hz, 1H), 2.78 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.31 (ddt, J = 11.8, 7.8, 4.1 Hz, 1H), 2.04 (dd, J = 9.9, 2.2 Hz, 1H), 1.92 (dd, J = 9.8, 2.5 Hz, 1H); 567.3 [M + H]⁺ 1.41 903

N-(2- ((1R,4R)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)-5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.11 (s, 1H), 7.53 (dd, J = 7.1, 2.2 Hz, 1H), 7.47 (s, 1H), 7.38 (ddd, J = 8.6, 4.6, 2.3 Hz, 1H), 7.20 (t, J = 8.8 Hz, 1H), 6.54 (s, 1H), 6.46 (dd, J = 17.0, 10.1 Hz, 1H), 6.34 (dd, J = 17.1, 1.8 Hz, 1H), 6.29 (s, 1H), 5.77 (dd, J = 10.1, 1.8 Hz, 1H), 5.51-5.47 (m, 1H), 4.58 (t, J = 1.9 Hz, 1H), 4.35 (s, 1H), 4.13 (dt, J = 7.9, 3.9 Hz, 1H), 4.09 (d, J = 7.5 Hz, 1H), 3.91 (q, J = 7.9 Hz, 1H), 3.84 (s, 4H), 3.49 (dd, J = 9.7, 1.7 Hz, 1H), 3.12 (d, J = 9.7 Hz, 1H), 2.78 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.35-2.25 (m, 1H), 2.03 (dd, J = 9.9, 2.3 Hz, 1H), 1.91 (dd, J = 9.4, 2.6 Hz, 1H); 567.3 [M + H]⁺ 1.40 904

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-((2- methoxyethy l)(methyl)ami no)phenyl)ac rylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.50 (s, 1H), 8.06 (s, 1H), 7.44 (dd, J = 7.1,2.2 Hz, 1H), 7.28 (ddd, J = 8.7, 4.6, 2.3 Hz, 1H), 7.10 (t, J = 8.8 Hz, 1H), 6.87 (s, 1H), 6.41-6.29 (m, 2H), 6.23 (dd, J = 17.0, 1.8 Hz, 1H), 5.68 (dd, J = 10.0, 1.8 Hz, 1H), 5.41 (dd, J = 8.6, 4.8 Hz, 1H), 4.04 (td, J = 7.9, 4.2 Hz, 1H), 3.87 (q, J = 7.9 Hz, 1H), 3.75 (s, 3H), 3.43 (t, J = 4.9 Hz, 2H), 3.32 (s, 3H), 2.93 (t, J = 4.9 Hz, 2H), 2.72 (td, J = 8.0, 4.0 Hz, 1H), 2.67 (s, 3H), 2.26-2.16 (m, 1H); 557.4 [M + H]⁺ 1.65 905

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- cyclopropyl- piperazine-1- yl)-4- methoxy- phenyl)acrylamide 594.4 [M + H]⁺ 1.28 906

N-(5-((6- ((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-((S)-3- (dimethylami no)pyrolidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.69 (s, 1H), 8.35 (s, 1H), 8.22 (s, 1H), 7.53 (dd, J = 7.0, 2.3 Hz, 1H), 7.32 (ddd, J = 8.6, 4.6, 2.3 Hz, 1H), 7.10 (t, J = 8.7 Hz, 1H), 6.92 (s, 1H), 6.75 (s, 1H), 6.67 (s, 1H), 6.43-6.35 (m, 1H), 6.30 (dd, J = 16.9, 9.7 Hz, 1H), 5.73 (dd, J = 9.7, 2.0 Hz, 1H), 5.64 (dd, J = 8.7, 4.5 Hz, 1H), 4.15 (td, J = 8.0, 4.2 Hz, 1H), 4.04 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.13 (q, J = 8.4, 7.8 Hz, 4H), 2.91 (t, J = 7.2 Hz, 1H), 2.79-2.71 (m, 1H), 2.31 (s, 7H), 2.22-2.14 (m, 1H), 2.02- 1.94 (m, 1H); 582.4 [M + H]⁺ 1.23 907

N-(2-(4- acetylpiper- azine-1-yl)-5- ((6-((R)-3-(3- chloro-4- fluorophenyl) isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.33 (s, 1H), 8.17 (s, 1H), 7.54 (dd, J = 7.1,2.2 Hz, 1H), 7.39 (ddd, J = 7.3, 4.6, 2.2 Hz, 1H), 7.20 (t, J = 8.8 Hz, 1H), 6.90 (s, 1H), 6.57 (dd, J = 17.0, 10.3 Hz, 1H), 6.45 (s, 1H), 6.36 (dd, J = 17.0, 1.5 Hz, 1H), 5.80 (d, J = 10.4 Hz, 1H), 5.52 (dd, J = 8.6, 4.7 Hz, 1H), 4.14 (td, J = 7.9, 4.2 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.86 (s, 3H), 3.78 (t, J = 5.1 Hz, 2H), 3.73 (t, J = 5.0 Hz, 2H), 2.95 (t, J = 5.0 Hz, 2H), 2.90 (t, J = 5.1 Hz, 2H), 2.80 (dtd, J = 12.3, 8.0, 4.2 Hz, 1H), 2.36-2.26 (m, 1H), 2.16 (s, 3H); 596.3 [M + H]⁺ 1.41 908

N-(5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.10 (s, 1H), 9.05 (s, 1H), 8.21 (s, 1H), 7.23 (dt, J = 15.8, 7.3 Hz, 2H), 7.07 (t, J = 7.6 Hz, 1H), 6.86 (s, 1H), 6.65 (dd, J = 17.0, 10.1 Hz, 1H), 6.32 (s, 1H), 6.24 (dd, J = 17.0, 2.0 Hz, 1H), 5.78- 5.73 (m, 1H), 5.71 (dd, J = 8.7, 5.2 Hz, 1H), 4.80 (d, J = 6.4 Hz, 4H), 4.47 (t, J = 6.6 Hz, 1H), 4.20 (td, J = 7.8, 3.9 Hz, 2H), 3.84 (s, 7H), 3.17 (s, 5H), 2.83 (dq, J = 8.1,4.2 Hz, 1H), 2.26 (d, J = 1.9 Hz, 3H), 2.19 (ddt, J = 11.6, 7.7, 3.9 Hz, 1H),; 590.4 [M + H]⁺ 1.25 909

N-(2-(4- cyclopropylpip- erazine-1-yl)- 5-((6-((R)-3- (2-fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.99 (s, 1H), 8.60 (s, 1H), 8.15 (d, J = 2.9 Hz, 2H), 7.28 (t, J = 7.4 Hz, 1H), 7.19 (t, J = 7.3 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.85 (s, 1H), 6.61 (dd, J = 17.0, 10.2 Hz, 1H), 6.37 (s, 1H), 6.27-6.16 (m, 2H), 6.13-5.81 (m, 1H), 5.72 (dd, J = 9.2, 4.4 Hz, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.85 (q, J = 7.9 Hz, 1H), 3.79 (s, 3H), 2.88-2.69 (m, 10H), 2.54(s, 1H), 2.26 (d, J = 2.0 Hz, 3H), 2.13 (ddt, J = 12.8, 8.2, 4.1 Hz, 1H), 1.71 (dq, J = 6.8, 3.4 Hz, 1H),; 574.5 [M + H]⁺ 1.29 910

N-(2-(4-((S)-3- (dimethylamin o)pyrolidine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(2- fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.60 (s, 1H), 8.14 (s, 1H), 7.28 (t, J = 7.1 Hz, 1H), 7.19 (t, J = 7.0 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.82 (s, 1H), 6.69-6.59 (m, 1H), 6.35 (s, 1H), 6.20 (dt, J = 17.3, 2.4 Hz, 2H), 5.72 (dd, J = 9.1,4.9 Hz, 2H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.85 (t, J = 8.0 Hz, 2H), 3.80 (d, J = 2.1 Hz, 3H), 3.46 (q, J = 8.9, 8.0 Hz, 2H), 3.06-2.93 (m, 8H), 2.78 (dt, J = 9.8, 6.0 Hz, 2H), 2.71-2.62 (m, 4H), 2.36-2.30 (m, 1H), 2.26 (d, J = 2.0 Hz, 3H), 2.12 (d, J = 4.0 Hz, 6H),; 645.6 [M + H]⁺ 1.12 911

N-(5-((6-((R)- 3-(2-fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- isopropylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.60 (s, 1H), 8.14 (s, 1H), 7.28 (t, J = 7.3 Hz, 1H), 7.19 (t, J = 7.2 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.82 (s, 1H), 6.69 (ddt, J = 21.3, 16.9, 6.5 Hz, 1H), 6.35 (s, 1H), 6.27-6.00 (m, 1H), 5.73 (ddd, J = 9.7, 6.9, 3.3 Hz, 2H), 4.14 (td, J = 7.9, 3.9 Hz, 1H), 3.85 (t, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.65 (t, J = 7.0 Hz, 2H), 3.45 (t, J = 7.8 Hz, 2H), 3.23 (t, J = 6.3 Hz, 3H), 3.17 (ddt, J = 12.6, 10.3, 6.4 Hz, 4H), 3.05 (d, J = 10.4 Hz, 3H), 2.98 (dd, J = 11.5, 3.6 Hz, 4H), 2.78 (dd, J = 8.1,4.2 Hz, 2H), 2.71-2.61 (m, 2H), 2.26 (d, J = 2.0 Hz, 2H), 2.12 (s, 6H),; 659.6 [M + H]⁺ 1.23 912

N-(2-(4- ((2S,6R)-2,6- dimethylmorp holino)piperidine-1-yl)-5-((6- ((R)-3-(2- fluoro-3- methylphenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.91 (s, 1H), 8.62 (s, 1H), 8.15 (s, 1H), 7.31-7.25 (m, 1H), 7.19 (t, J = 7.4 Hz, 1H), 7.06 (t, J = 7.6 Hz, 1H), 6.83 (s, 1H), 6.63 (d, J = 11.6 Hz, 1H), 6.37 (s, 1H), 6.28-6.19 (m, 1H), 5.72 (dd, J = 9.1,5.4 Hz, 2H), 4.14 (td, J = 7.9, 3.8 Hz, 1H), 3.86 (t, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.60 (ddt, J = 13.0, 9.8, 4.8 Hz, 4H), 3.13 (qd, J = 7.1, 3.4 Hz, 4H), 2.77 (dq, J = 8.2, 4.1 Hz, 2H), 2.74-2.63 (m, 4H), 2.26 (d, J = 2.0 Hz, 3H), 2.20-2.08 (m, 2H), 1.83 (s, 2H) 1.13 (s, 6H),; 630.4 [M + H]⁺ 1.32 913

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (4- ethylpiperazine- 1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.14 (d, J = 6.5 Hz, 2H), 7.55- 7.48 (m, 1H), 7.48-7.40 (m, 1H), 7.22 (t, J = 7,9 Hz, 1H), 6.82 (s, 1H), 6.76-6.58 (m, 1H), 6.36 (s, 1H), 6.22 (td, J = 16.7, 16.1,2.0 Hz, 2H), 5.87 (dt, J = 10.3, 1.5 Hz, 1H), 4.16 (dt, J = 8.1,4.0 Hz, 1H), 3.85 (q, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.67 (q, J = 7.9, 7.3 Hz, 1H), 3.22 (dd, J = 12.7, 6.3 Hz, 3H), 3.19-3.12 (m, 2H), 3.05 (d, J = 10.7 Hz, 3H), 3.00 (s, 1H), 2.81 (dq, J = 8.3, 4.2 Hz, 1H), 2.67 (t, J = 11.9 Hz, 4H) 2.37-2.29 (m, 2H), 2.20 (dq, J = 12.9, 4.9, 4.4 Hz, 3H), 1.85 (d, J = 12.1 Hz, 2H), 1.71 (d, J = 11.6 Hz, 2H),; 665.5 [M + H]⁺ 1.25 914

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- ((R)-3- (dimethylamino)- pyrolidine-1- yl)piperidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.15(s, 1H), 7.55-7.48 (m, 1H), 7.48-7.40 (m, 1H), 7.22 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.64 (dd, J = 16.8, 10.1 Hz, 1H), 6.35 (s, 1H), 6.24-6.17 (m, 1H), 5.72 (dt, J = 9.3, 5.0 Hz, 2H), 4.17 (td, J = 7.9, 3.7 Hz, 1H), 3.85 (q, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.20-3.13 (m, 1H), 3.01 (td, J = 15.7, 14.1, 6.8 Hz, 4H), 2.82 (dq, J = 8.3, 4.8 Hz, 2H), 2.73-2.62 (m, 4H), 2.37 (t, J = 7.6 Hz, 1H), 2.14 (s, 7H), 1.87 (d, J = 28.6 Hz, 3H), 1.73-1.57 (m, 3H),; 665.5 [M + H]⁺ 1.19 915

N-(5-((6-((R)-3- (3-chloro-2- fluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2-(4- (dimethylamino)- -[1,4′- bipiperidine]-1′- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.08 (d, J = 11.8 Hz, 1H), 8.65 (s, 1H), 8.15 (d, J = 5.0 Hz, 1H), 8.05 (d, J = 3.7 Hz, 1H), 7.55-7.48 (m, 1H), 7.44 (t, J = 7.2 Hz, 1H), 7.23 (t, J = 7.9 Hz, 1H), 6.82 (s, 1H), 6.38 (s, 1H), 6.30- 6.16 (m, 1H), 6.04 (dq, J = 30.3, 6.5 Hz, 1H), 5.72 (dd, J = 8.8, 5.1 Hz, 1H), 4.18 (td, J = 8.0, 3.6 Hz, 1H), 3.85 (q, J = 7.9 Hz, 1H), 3.80 (s, 3H), 3.62 (t, J = 7.6 Hz, 1H), 3.07 (d, J = 2.9 Hz, 4H), 3.01 (dt, J = 13.1,6.2 Hz, 5H), 2.91 (t, J = 7.7 Hz, 4H), 2.66 (s, 6H), 2.25-2.14 (m, 1H), 1.75-1.66 (m, 6H),; 679.5 [M + H]⁺ 1.20 916

N-(5-((6-((R)-3- (3,5- difluorophenyl)- isoxazolidine-2- yl)pyrimidine-4- yl)amino)-2- ((S)-3,4- dimethylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.01 (s, 1H), 8.66 (s, 1H), 8.17 (d, J = 4.8 Hz, 2H), 7.12 (dp, J = 7.7, 2.5, 2.1 Hz, 3H), 6.83 (s, 1H), 6.61 (dd, 7 = 17.0, 10.2 Hz, 1H), 6.38 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.77-5.68 (m, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (td, 7 = 7.9, 3.9 Hz, 1H), 3.82 (s, 3H), 3.34 (s, 3H), 2.95 (d, 7 = 13.0 Hz, 4H), 2.76 (dtd, 7 = 12.1,7.9, 3.8 Hz, 2H), 2.40 (s, 2H), 2.30- 2.18 (m, 1H), 1.32-1.21 (m, 2H), 1.11 (d,7 = 7.4 Hz, 3H),; 566.4 [M + H]⁺ 1.21 917

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((R)-3,4- dimethylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.99 (s, 1H), 8.64 (s, 1H), 8.17 (s, 1H), 8.13 (s, 1H), 7.12 (dq, J = 9.4, 3.2 Hz, 3H), 6.83 (s, 1H), 6.58 (dd, J = 17.0, 10.2 Hz, 1H), 6.36 (s, 1H), 6.20 (dd, J = 17.0, 2.0 Hz, 1H), 5.72 (dd, J = 10.2, 2.0 Hz, 1H), 5.56 (dd, J = 8.7, 5.0 Hz, 1H), 4.13 (td, J = 7.9, 3.9 Hz, 1H), 3.81 (s, 4H), 3.32 (s, 10H), 2.98- 2.71 (m, 5H), 2.24 (ddd, J = 20.7, 10.1,6.2 Hz, 4H), 1.32-1.19 (m, 3H), 1.09-0.97 (m, 3H),; 566.4 [M + H]⁺ 1.23 918

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((R)-2,4- dimethylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide 566.5 [M + H]⁺ 1.27 919

N-(5-((6-((R)- 3-(3,5- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((S)-2,4- dimethylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide 566.5 [M + H]⁺ 1.27 920

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.63 (s, 1H), 8.16 (s, 1H), 7.35 (ddd, J = 10.4, 6.3, 1.9 Hz, 1H), 7.32-7.26 (m, 1H), 7.23-7.15 (m, 1H), 6.83 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.36 (s, 1H), 6.21 (dd, J = 17.0, 2.0 Hz, 1H), 5.79- 5.68 (m, 2H), 3.86 (d, J = 8.2 Hz, 1H), 3.80 (s, 3H), 3.59 (t, J = 4.5 Hz, 4H), 3.33 (s, 4H), 3.05 (d, J = 11.1 Hz, 2H), 2.81 (dtd, J = 12.0, 7.9, 3.7 Hz, 1H), 2.66 (tt, J = 11.7, 2.5 Hz, 2H), 2.22 (dddq, J = 16.8, 12.9, 8.2, 5.0, 4.3 Hz, 2H), 1.91-1.81 (m, 2H), 1.69 (tdd, J = 15.1, 9.1, 3.4 Hz, 2H), 1.30- 1.20 (m, 2H), 0.85 (td, J = 7.9, 7.3, 3.1 Hz, 1H),; 622.4 [M + H]⁺ 1.21 921

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4- methylpiper- azine-1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.64 (s, 1H), 8.16 (s, 1H), 7.40-7.25 (m, 2H), 7.26-7.15 (m, 1H), 6.82 (s, 1H), 6.68 (ddd, J = 19.3, 17.0, 10.3 Hz, 1H), 6.36 (s, 1H), 6.29-6.16 (m, 2H), 5.78- 5.68 (m, 3H), 4.17 (td, J = 8.0, 3.8 Hz, 1H), 3.80 (s, 3H), 3.07 (d, J = 11.0 Hz, 3H), 2.87-2.61 (m, 11H), 2.56 (s, 1H), 1.92- 1.66 (m, 5H), 1.31-1.20 (m, 5H),; 635.5 [M + H]⁺ 1.16 922

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4-(4- ethylpiperazine- 1-yl)piperidine- 1-yl)-4- methoxyphenyl)acrylamide 649.5 [M + H]⁺ 1.17 923

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (oxetane-3- yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.49 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.39-7.31 (m, 1H), 7.12-7.00 (m, 2H), 7.00 (s, 1H), 6.82 (s, 1H), 6.75 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (dd, J = 8.8, 4.6 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.72 (t, J = 6.5 Hz, 2H), 4.67 (t, J = 6.2 Hz, 2H), 4.14 (td, J = 8.1,4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.85 (s, 3H), 3.61 (p, J = 6.4 Hz, 1H), 3.03-2.91 (m, 4H), 2.91-2.79 (m, 1H), 2.63-2.41 (m, 4H), 2.38-2.25 (m, 1H),; 594.5 [M + H]⁺ 1.26 924

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((2- (dimethylamin o)ethyl)(methyl- )amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.10 (s, 1H), 8.95 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.41-7.32 (m, 1H), 7.12- 6.99 (m, 2H), 6.98 (s, 1H), 6.80 (d, J = 1.3 Hz, 2H), 6.40 (dd, J = 17.0, 2.0 Hz, 1H), 6.29 (dd, J = 17.0, 9.8 Hz, 1H), 5.94 (dd, J = 8.8, 4.5 Hz, 1H), 5.68 (dd, J = 9.8, 2.0 Hz, 1H), 4.20-4.05 (m, 2H), 3.85 (s, 3H), 2.94-2.80 (m, 3H), 2.72 (s, 3H), 2.37-2.31 (m, 3H), 2.28 (s, 6H),; 554.4 [M + H]⁺ 1.21 925

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.53 (s, 1H), 8.37 (d, J = 1.0 Hz, 1H), 7.40-7.31 (m, 1H), 7.12-7.00 (m, 2H), 6.98 (s, 1H), 6.80 (s, 1H), 6.75 (s, 1H), 6.37 (dd, J = 16.9, 1.6 Hz, 1H), 6.27 (dd, J = 16.9, 9.9 Hz, 1H), 5.93 (dd, J = 8.9, 4.5 Hz, 1H), 5.75 (dd, J = 9.9, 1.6 Hz, 1H), 4.14 (td, J = 8.1,4.2 Hz, 1H), 4.07 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 2.99-2.88 (m, 4H), 2.88-2.79 (m, 1H), 2.73-2.49 (m, 4H), 2.40 (s, 3H), 2.34- 2.25 (m, 1H),; 552.4 [M + H]⁺ 1.17 926

N-(5-((6-((R)- 3-(2,3- difluorophenyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- (4- (dimethylamin o)piperidine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.46 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.36 (dt, J = 9.7, 3.5 Hz, 1H), 7.12- 6.99 (m, 2H), 6.96 (s, 1H), 6.75 (d, J = 3.5 Hz, 2H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.26 (dd, J = 16.9, 9.9 Hz, 1H), 5.93 (dd, J = 8.9, 4.6 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.14 (td, J = 8.1,4.3 Hz, 1H), 4.07 (q, J = 8.0 Hz, 1H), 3.85 (s, 3H), 3.11-3.04 (m, 2H), 2.86 (dtd, J = 12.4, 8.1,4.2 Hz, 1H), 2.77 (dd, J = 12.3, 2.3 Hz, 1H), 2.71 (dd, J = 12.1, 2.3 Hz, 1H), 2.42 (s, 6H), 2.36-2.26 (m, 2H), 2.09 (d, J = 12.6 Hz, 2H), 1.71 (dtd, J = 14.7, 12.0, 4.0 Hz, 2H),; 580.5 [M + H]⁺ 1.20 927

N-(5-((6- ((R)-3-(2,3- difluorophe nyl)isoxazol- idine-2- yl)pyrimidine- 4-yl)amino)-2- ((R)-3- (dimethylamino)pyrolidine- 1-yl)-4- methoxy- phenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.65 (s, 1H), 8.35 (s, 1H), 8.17 (s, 1H), 7.40-7.31 (m, 1H), 7.12-6.98 (m, 2H), 6.91 (s, 1H), 6.73 (d, J = 11.0 Hz, 2H), 6.38 (dd, J = 17.0, 1.9 Hz, 1H), 6.30 (dd, J = 16.9, 9.7 Hz, 1H), 5.93 (dd, J = 8.8, 4.5 Hz, 1H), 5.73 (dd,J = 9.7, 1.9 Hz, 1H), 4.14 (td, J = 8.0, 4.2 Hz, 1H), 4.06 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.23-3.14 (m, 1H), 3.14-3.06 (m, 3H), 2.94-2.78 (m, 2H), 2.37- 2.31 (m, 1H), 2.30 (s, 6H), 2.24-2.12 (m, 1H), 2.00-1.92 (m, 1H),; 566.4 [M + H]⁺ 1.13 928

N-(2-((2- (dimethylam ino)ethyl)(m ethyl)amino)- -4- methoxy-5- ((6-((R)-3- (thiophene- 2-yl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)ph enyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 10.06 (s, 1H), 8.96 (s, 1H), 8.41 (s, 1H), 7.20 (dd, J = 5.1, 1.1 Hz, 1H), 7.07 (d, J = 3.5 Hz, 1H), 6.98-6.91 (m, 2H), 6.79 (s, 1H), 6.71 (s, 1H), 6.43-6.24 (m, 2H), 6.01 (dd, J = 8.2, 3.3 Hz, 1H), 5.68 (dd, J = 9.8, 2.0 Hz, 1H), 4.26-4.12 (m, 2H), 3.84 (s, 3H), 2.92-2.83 (m, 2H), 2.75-2.62 (m, 4H), 2.55-2.45 (m, 1H), 2.38-2.31 (m, 2H), 2.29 (s, 6H); 524.36 [M + H]⁺ 1.16 929

N-(4- methoxy-2- (4- methylpiper- azine-1-yl)- 5-((6-((R)-3- (thiophene- 2-yl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)ph enyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.91 (s, 1H), 8.52 (s, 1H), 8.41 (s, 1H), 7.20 (dd, J = 5.1, 1.0 Hz, 1H), 7.07 (d, J = 3.5 Hz, 1H), 6.98-6.91 (m, 2H), 6.79 (s, 1H), 6.67 (s, 1H), 6.40-6.22 (m, 2H), 6.00 (dd, J = 8.2, 3.3 Hz, 1H), 5.75 (dd, J = 10.0, 1.3 Hz, 1H), 4.21 (td, J = 8.0, 5.5 Hz, 1H), 4.13 (q, J = 7.9 Hz, 1H), 3.83 (s, 3H), 2.97-2.87 (m, 4H), 2.73-2.63 (m, 1H), 2.57- 2.46 (m, 1H), 2.39 (s, 3H); 522.33 [M + H]⁺ 1.13 930

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo 2.2.1]hepta ne-5- yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (thiophene- 2-yl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)ph enyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.86 (s, 1H), 8.48 (s, 1H), 8.40 (s, 1H), 7.20 (dd, J = 5.1, 1.0 Hz, 1H), 7.07 (d, J = 3.5 Hz, 1H), 6.98-6.93 (m, 2H), 6.75 (s, 1H), 6.67 (s, 1H), 6.38-6.20 (m, 2H), 6.00 (dd, J = 8.3, 3.3 Hz, 1H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.45 (s, 1H), 4.24-4.07 (m, 3H), 3.84 (s, 3H), 3.80 (s, 1H), 3.69-3.63 (m, 1H), 3.19-3.14 (m, 1H), 3.06-2.99 (m, 2H), 2.81-2.65 (m, 3H), 2.64-2.56 (m, 1H), 2.56-2.46 (m, 2H), 2.08-1.65 (m, 6H); 604.45 [M + H]⁺ 1.16 931

N-(5-((6- ((R)-3-(3,4- dichlorophe nyl)isoxazol- idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- (4-(4- (oxetane-3- yl)piperazine- 1-yl)piperidine- 1-yl)phenyl)ac rylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.36 (s, 1H), 7.58 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.30 (d, J = 8.6 Hz, 1H), 6.93 (s, 1H), 6.71 (s, 2H), 6.38 (d, J = 16.1 Hz, 3H), 5.76 (d, J = 11.1 Hz, 1H), 5.65 (s, 1H), 4.70 (t, J = 6.6 Hz, 2H), 4.66-4.56 (m, 2H), 4.16 (d, J = 4.3 Hz, 1H), 4.06 (d, J = 8.2 Hz, 1H), 3.92 (s, 1H), 3.85 (s, 3H), 3.61 (d, J = 33.0 Hz, 2H), 3.45- 3.29 (m, 4H), 3.26-3.06 (m, 4H), 2.86 (s, 1H), 2.78 (d, J = 18.0 Hz, 5H), 2.39-2.26 (m, 3H),; 709.4 [M + H]⁺ 1.31 932

N-(2-(4-(4- cyclopropyip iperazine-1- yl)piperidine- 1-yl)-5-((6- ((R)-3-(3,4- dichlorophe nyl)isoxazol- idine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.13 (s, 1H), 8.84 (s, 1H), 8.35 (s, 1H), 8.31 (s, 1H), 7.57 (s, 1H), 7.41 (d, J = 8.3 Hz, 1H), 7.29 (dd, J = 8.8, 2.2 Hz, 1H), 6.70 (m, 2H), 6.38 (s, 2H), 5.80- 5.73 (m, 1H), 5.64 (dd, J = 8.8, 4.6 Hz, 1H), 4.17 (td, J = 7.9, 4.2 Hz, 1H), 4.06 (q, J = 8.2 Hz, 1H), 3.95-3.90 (m, 2H), 3.84 (s, 3H), 3.66 (d, J = 17.4 Hz, 4H), 3.33 (t, J = 6.3 Hz, 4H), 3.13-3.04 (m, 6H), 2.33 (dd, J = 12.3, 4.3 Hz, 2H), 2.29- 2.22 (m, 2H), 0.55 (s, 2H), 0.39 (s, 2H),; 693.5 [M + H]⁺ 1.38 933

N-(5-((6- ((R)-3-(2- chloro-3,6- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(4- cyclopropylp iperazine-1- yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.43 (s, 1H), 8.33 (d, J = 1.0 Hz, 1H), 7.08-7.01 (m, 1H), 7.00-6.93 (m, 1H), 6.84 (s, 1H), 6.73 (s, 1H), 6.62 (s, 1H), 6.37-6.20 (m, 2H), 5.94 (d, J = 8.3Hz, 1H), 5.75-5.71 (m, 1H), 4.39-4.35 (m, 1H), 3.99-3.93 (m, 1H), 3.82 (s, 3H), 3.05 (d, J = 11.4 Hz, 2H), 2.78-2.59 (m, 11H), 2.56- 2.49 (m, 1H), 2.32 (td, J = 7.5, 3.8 Hz, 1H), 2.07 (d, J = 12.6 Hz, 2H), 1.72-1.65 (m, 2H), 1.64- 1.60 (m, 1H), 0.48-0.41 (m, 4H),; 695.5 [M + H]⁺ 1.20 934

N-(5-((6- ((R)-3-(2- chloro-3,6- difluorophenyl)- isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((S)-4- cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ′H NMR (400 MHz, Chloroform-d) δ 8.83 (s, 1H), 8.42 (s, 1H), 8.33 (d, J = 1.1 Hz, 1H), 7.05 (ddd, J = 9.0, 7.9, 4.5 Hz, 1H), 6.97 (td, J = 9.5, 4.3 Hz, 1H), 6.83 (s, 1H), 6.73 (s, 1H), 6.62 (s, 1H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.24 (dd, J = 17.0, 10.1 Hz, 1H), 5.93 (t, J = 8.3 Hz, 1H), 5.79-5.70 (m, 1H), 4.42-4.33 (m, 1H), 3.96 (td, J = 8.9, 6.0 Hz, 1H), 3.82 (s, 3H), 3.08-2.99 (m, 3H), 2.96 (d, J = 10.7 Hz, 1H), 2.87 (d, J-10.8 Hz, 1H), 2.83- 2.65 (m, 3H), 2.60-2.42 (m, 3H), 2.36-2.24 (m, 2H), 2.07 (d, J = 12.1 Hz, 2H), 2.00 (t, J = 10.4 Hz, 1H), 1.72-1.62 (m, 2H), 1.58-1.48 (m, 1H), 1.21 (d, 3H), 0.70-0.55 (m, 2H), 0.49-0.38 (m, 1H), 0.37-0.26 (m, 1H),; 709.5 [M + H]⁺ 1.22 935

N-(5-((6- ((R)-3-(2- chloro-3,6- difluorophenyl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)-2- (4-((R)-4- cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.80 (s, 1H), 8.43 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.05 (ddd, J = 9.1,7.9, 4.5 Hz, 1H), 6.97 (td, J = 9.5, 4.4 Hz, 1H), 6.87 (s, 1H), 6.73 (s, 1H), 6.62 (s, 1H), 6.36 (dd, J = 16.9, 1.5 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.93 (t, J = 8.3 Hz, 1H), 5.74 (dd, J = 9.9, 1.5 Hz, 1H), 4.37 (td, J = 8.0, 1.9 Hz, 1H), 4.01- 3.90 (m, 1H), 3.82 (s, 3H), 3.03 (td, J = 11.3, 10.8, 5.1 Hz, 3H), 2.96 (d, J = 10.8 Hz, 1H), 2.92- 2.84 (m, 1H), 2.84-2.64 (m, 3H), 2.60-2.42 (m, 3H), 2.36-2.23 (m, 2H), 2.11-1.95 (m, 3H), 1.73-1.58 (m, 2H), 1.58-1.49 (m, 1H), 1,21 (d, 3H), 0.71-0.55 (m, 2H), 0.49-0.38 (m, 1H), 0.37-0.26 (m, 1H),; 709.5 [M + H]⁺ 1.22 936

N-(5-((6- ((S)-3-(2- chloro-3,6- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 2-(4-(4- cyclopropyl piperazine- 1-yl)piperidine- 1-yl)-4- methoxyph enyl)acrylamide ′H NMR (400 MHz, DMSO-d₆) δ 9.04 (s, 2H), 8.16 (S, 1H), 8.04 (s, 1H), 7.44 (td, J = 8.9, 4.4 Hz, 1H), 7.30 (td, J = 9.7, 4.4 Hz, 1H), 6.84 (s, 1H), 6.62 (dd, J = 16.9, 10.2 Hz, 1H), 6.28-6.06 (m, 3H), 5.78-5.68 (m, 3H), 4.39 (t, J = 7.6 Hz, 1H), 3.79 (s, 3H), 3.46 (s, 2H), 3.27 (s, 2H), 3.15 (d, J = 11.5 Hz, 4H), 3.02 (d, J = 24.8 Hz, 3H), 2.89- 2.66 (m, 6H), 2.41 (ddd, J = 19.2, 11.3, 7.8 Hz, 2H), 2.08 (d, J = 3.5 Hz, 3H), 1.91 (s, 3H), 0.55 (d, J = 6.9 Hz, 2H), 0.48 (s, 2H),; 695.5 [M + H]⁺ 1.15 937

N-(2-(4-(4- cyclopropyl piperazine- 1-yl)piperidine- 1-yl)-4- methoxy- 5-((6-((S)- 3-(2,3,6- trifluoroph enyl)iso- xazolidine-2- yl)pyrimidine-4- yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.97 (s, 1H), 8.58 (s, 1H), 8.14 (s, 1H), 7.45 (qd, J = 9.4, 4.8 Hz, 1H), 7.13 (tdd, J = 9.5, 3.9, 2.0 Hz, 1H), 6.81 (s, 1H), 6.65 (dd, J = 17.0, 10.2 Hz, 1H), 6.27 (d, J = 5.4 Hz, 1H), 6.22 (t, J = 1.7 Hz, 1H), 5.74-5.64 (m, 2H), 4.32 (td, J = 8.1,2.2 Hz, 1H), 3.78 (s, 3H), 3.56 (p, J = 6.6 Hz, 2H), 3.07 (q, J = 7.5 Hz, 4H), 2.79 (ddt, J = 13.9, 10.4, 5.6 Hz, 2H), 2.65 (d, J = 9.6 Hz, 10H), 2.41 (ddd, J = 18.7, 11.0, 7.8 Hz, 2H), 1.95-1.85 (m, 2H), 1.76 (q, J = 12.5, 11.3 Hz, 2H), 0.41 (dt, J = 6.2, 3.0 Hz, 2H), 0.31 (p, J = 3.9 Hz, 2H),; 679.5 [M + H]⁺ 1.18 938

N-(5-((6- ((R)-3-(3- chloro-2,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 2-(4-(4- cyclopropyl piperazine- 1-yl)piperidin _(e)-1-yl)-4- methoxy- phenyl)acrylamide H NMR (400 MHz, DMSO-d₆) δ 8.95 (s, 1H), 8.66 (s, 1H), 8.16 (s, 1H), 7.57 (ddd, J = 8.4, 5.5, 3.2 Hz, 1H), 7.22 (ddd, J = 8.7, 5.3, 3.2 Hz, 1H), 6.82 (s, 1H), 6.65 (dd, J = 16.9, 10.2 Hz, 1H), 6.36 (s, 1H), 6.20 (dd, J = 17.0,2.0 Hz, 1H), 5.71 (dd, J = 9.2, 3.8 Hz, 2H), 4.18 (td, J = 7.9, 3.7 Hz, 1H), 3.79 (s, 3H), 3.04 (d, J = 11.2 Hz, 2H), 2.81 (dtd, J = 12.1,8.0, 3.6 Hz, 1H), 2.66 (t, J = 11.7 Hz, 2H), 2.54 (s, 2H), 2.32-2.14 (m, 3H), 2.09 (s, 2H), 1.86 (s, 8H), 1.76-1.62 (m, 3H), 1.58 (tt, J = 6.7, 3.6 Hz, 2H), 0.39 (dt, J = 6.2, 3.0 Hz, 2H), 0.27 (p, J = 3.9 Hz, 2H),; 695.5 [M + H]⁺ 1.37 939

N-(5-((6- ((R)-3-(3- chloro-2,5- difluorophe nyl)isoxazolidine-2- yl)pyrimidine-4- yl)amino)- 2-(4- cyclopropyl piperazine- 1-yl)-4- methoxyph enyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.99 (s, 1H), 8.67 (s, 1H), 8.17(s, 1H), 7.57 (ddd, J = 8.4, 5.6, 3.2 Hz, 1H), 7.22 (ddd, J = 8.7, 5.2, 3.2 Hz, 1H), 6.85 (s, 1H), 6.61 (dd, J-17.0, 10.2 Hz, 1H), 6.38 (s, 1H), 6.20 (dd, J = 17.0, 1.9 Hz, 1H), 5.76-5.67 (m, 2H), 4.18 (td, J = 7.9, 3.7 Hz, 1H), 3.79 (s, 3H), 2.78 (dt, J = 34.1,4.9 Hz, 10H), 2.21 (dtd, J = 13.0, 8.2, 4.9 Hz, 1H), 1.76 (s, 1H), 1.70 (dq, J = 6.9, 3.7, 3.3 Hz, 1H), 0.44 (dt, J = 6.3, 3.0 Hz, 2H), 0.32 (p, J = 4.0 Hz, 2H),; 612.3 [M + H]⁺ 1.35 940

N-(2-(4- cyclopropyl- piperazine-1- yl)-4- methoxy-5- ((6-((R)-3-(3- (trifluoromethyl- )phenyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.60 (s, 1H), 8.37 (s, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.6 Hz, 1H), 7.52-7.43 (m, 2H), 7.03 (s, 1H), 6.79 (s, 1H), 6.74 (s, 1H), 6.37 (dd, J = 16.9, 1.7 Hz, 1H), 6.29 (dd, J = 16.9, 9.9 Hz, 1H), 5.80-5.73 (m, 2H), 4.23-4.14 (m, 1H), 4.14-4.02 (m, 1H), 3.81 (s, 3H), 2.92-2.75 (m, 9H), 2.43- 2.30 (m, 1H), 1.77-1.68 (m, 1H), 0.57- 0.42 (m, 4H),; 610.4 [M + H]⁺ 1.31 941

N-(2-(4-((S)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3-(3- (trifluoromethyl- )phenyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H) 8.39-8.29 (m, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.6 Hz, 1H), 7.54- 7.47 (m, 1H), 7.47-7.41 (m, 1H), 6.96 (s, 1H), 6.74 (d, J = 6.4 Hz, 2H), 6.36 (dd, J = 16.9, 1.6 Hz, 1H), 6.25 (dd, J = 17.0, 10.0 Hz, 1H), 5.80-5.69 (m, 2H), 4.16 (td, J = 8.0, 4.2 Hz, 1H), 4.09 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.09-3.00 (m, 3H), 2.97 (d, J = 10.8 Hz, 1H), 2.92-2.66 (m, 4H), 2.58- 2.43 (m, 2H), 2.42-2.24 (m, 3H), 2.12- 1.96 (m, 3H), 1.74-1.59 (m, 2H), 1.59- 1.49 (m, 1H), 1.21 (d, 3H), 0.71-0.55 (m, 2H), 0.49-0.38 (m, 1H), 0.37-0.27 (m, 1H),; 707.5 [M + H]⁺ 1.34 942

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3-(3- (trifluoromethyl- )phenyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.5 Hz, 1H), 7.54-7.48 (m, 1H), 7.48-7.41 (m, 1H), 6.98 (s, 1H), 6.74 (d, J = 6.4 Hz, 2H), 6.36 (dd, J = 17.1, 1.6 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.81-5.70 (m, 2H), 4.21-4.12 (m, 1H), 4.12-4.03 (m, 1H), 3.84 (s, 3H), 3.09- 2.99 (m, 3H), 2.96 (d, J = 10.8 Hz, 1H), 2.88 (dd, J = 10.8, 2.7 Hz, 1H), 2.84-2.65 (m, 3H), 2.59-2.42 (m, 2H), 2.42-2.23 (m, 3H), 2.10-1.96 (m, 3H), 1.66 (qt, J = 12.1, 3.3 Hz, 2H), 1.58-1.48 (m, 1H), 1.21 (d, 3H), 0.70-0.55 (m, 2H), 0.49-0.38 (m, 1H), 0.37-0.26 (m, 1H),; 707.5 [M + H]⁺ 1.33 943

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2. 2.1]heptane- 5-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3-(3- (trifluoromethyl- )phenyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.48 (s, 1H), 8.39-8.34 (m, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.5 Hz, 1H), 7.54- 7.43 (m, 2H), 6.98 (s, 1H), 6.75 (d, J = 9.5 Hz, 2H), 6.35 (dd, J = 16.9, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.80- 5.69 (m, 2H), 4.44 (t, J = 2.0 Hz, 1H), 4.21- 4.12 (m, 1H), 4.12-4.04 (m, 2H), 3.85 (s, 3H), 3.77 (s, 1H), 3.66 (dd, J = 8.0, 1.6 Hz, 1H), 3.14 (dd, J = 9.9, 1.8 Hz, 1H), 3.07- 2.98 (m, 2H), 2.87-2.77 (m, 2H), 2.77- 2.69 (m, 1H), 2.64-2.54 (m, 1H), 2.51 (d, J = 9.9 Hz, 1H), 2.43-2.30 (m, 1H), 2.04 (d, J = 12.7 Hz, 1H), 1.99-1.88 (m, 2H), 1.83 (d, J = 9.9 Hz, 1H), 1.75-1.62 (m, 2H),; 666.5 [M + H]⁺ 1.28 944

N-(2-(4- ((1S,4S)-2-oxa- 5-azabicyclo[2.2.1]heptane-5- yl)piperidine-1- yl)-4-methoxy-5- ((6-((R)-3-(3- (trifluoromethyl)phenyl)isoxazol- idine-2- yl)pyrimidine-4- yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.49 (s, 1H), 8.36 (d, J = 1.0 Hz, 1H), 7.73 (s, 1H), 7.66 (d, J = 7.6 Hz, 1H), 7.54-7.43 (m, 2H), 7.00 (s, 1H), 6.75 (d, J = 11.5 Hz, 2H), 6.35 (dd, J = 17.0, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.80- 5.69 (m, 2H), 4.44 (t, J = 2.0 Hz, 1H), 4.21-4.13 (m, 1H), 4.13-4.03 (m, 2H), 3.85 (s, 3H), 3.77 (s, 1H), 3.66 (dd, J = 7.9, 1.7 Hz, 1H), 3.14 (dd, J = 9.9, 1.7 Hz, 1H), 3.08-2.97 (m, 2H), 2.87-2.70 (m, 3H), 2.64-2.56 (m, 1H), 2.56-2.47 (m, 1H), 2.42-2.30 (m, 1H), 2.04 (d, J = 12.8 Hz, 1H), 1.99-1.88 (m, 2H), 1.86-1.79 (m, 1H), 1.75-1.62 (m, 2H),; 666.5 [M + H]⁺ 1.28 945

N-(5-((6-((S)-3- benzylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)-4- methoxy-2-(4- methylpiperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.42 (s, 1H), 8.38 (s, 1H), 7.34-7.28 (m, 4H), 7.24-7.20 (m, 1H), 7.01 (m, 1H), 6.79 (s, 1H), 6.57 (s, 1H), 6.47-6.23 (m, 2H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 4.92-4.84 (m, 1H), 4.06 (td, J = 8.1, 4.7 Hz, 1H), 3.95 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.66 (p, J = 6.7 Hz, 1H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 3.07 (dd, J = 16.9, 9.4 Hz, 4H), 2.80 (d, J = 4.8 Hz, 2H), 2.53 (s, 3H), 2.21-2.14(m, 4H),; 530.5 [M + H]⁺ 1.11 946

N-(5-((6-((S)-3- benzylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)-2-(4- ethylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.50 (s, 1H), 8.37 (s, 1H), 7.36-7.29 (m, 4H), 7.23 (dd, J = 5.9, 2.7 Hz, 1H), 7.03 (s, 1H), 6.81 (s, 1H), 6.57 (s, 1H), 6.40-6.11 (m, 2H), 5.76 (m, 1H), 4.88 (m, 1H), 4.06 (td, J = 8.0, 4.6 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.65 (m, 2H), 3.26 (m, 1H), 3.08 (t, J = 7.4 Hz, 2H), 3.04-2.96 (m, 4H), 2.80 (m, 3H), 2.18 (dtd, J = 12.6, 8.1,4.7 Hz, 1H), 2.06 (dtd, J = 11.9, 7.9, 3.9 Hz, 1H), 1.54 (d, J = 7.4 Hz, 3H),; 544.5 [M + H]⁺ 1.07 947

N-(5-((6-((S)-3- benzylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)-2-((2- (dimethylamino) ethyl)(methyl)- amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.85 (s, 1H), 8.55 (s, 1H), 8.30 (s, 1H), 8.19 (s, 1H), 7.30 (d, J = 4.4 Hz, 4H), 7.24-7.17 (m, 1H), 6.93 (s, 1H), 6.32 (s, 1H), 6.27-6.15 (m, 2H), 5.71 (dd, J = 10.1,2.2 Hz, 1H), 4.75 (td, J = 7.4, 3.7 Hz, 1H), 4.05 (m, 1H), 3.86- 3.72 (m, 4H), 3.62-3.53 (m, 1H), 3.16-3.01 (m, 4H), 2.75 (dd, J = 13.7, 7.9 Hz, 1H), 2.62 (s, 3H), 2.52- 2.49 (m, 6H), 2.19-2.08 (m, 1H), 2.05-1.94 (m, 1H),; 532.5 [M + H]⁺ 1.15 948

N-(2-(4- acetylpiperazine- 1-yl)-5-((6-((S)- 3-benzylisoxazoli- dine-2- yl)pyrimidine-4- yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.93 (s, 1H), 8.43 (s, 1H), 8.40 (s, 1H), 7.35-7.28 (m, 4H), 7.24-7.19 (m, 1H), 6.90 (s, 1H), 6.71 (s, 1H), 6.60 (s, 1H), 6.41-6.20 (m, 2H), 5.76 (dd, J = 10.1, 1.5 Hz, 1H), 4.93-4.84 (m, 1H), 4.07 (m, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.84-3.80 (m, 4H), 3.64 (m, 2H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 3.08 (d, J = 6.6 Hz, 1H), 2.91-2.85 (m, 4H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.17 (m,4H), 2.12-2.02 (m, 1H),; 558.5 [M + H]⁺ 1.28 949

N-(5-((6-((S)-3- benzylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((1R,4R)-5-ethyl-2,5-diazabi- cyclo[2.2.1]heptane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.58 (s, 1H), 8.35 (s, 1H), 8.13 (s, 1H), 7.37-7.28 (m, 4H), 7.24-7.18 (m, 1H), 6.89 (s, 1H), 6.79 (s, 1H), 6.54 (s, 1H), 6.32-6.11 (m, 2H), 5.72 (dd, J = 9.7, 1.9 Hz, 1H), 4.88 (m, 1H), 4.07 (m, 1H), 3.99-3.89 (m, 4H), 3.86 (s, 3H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 3.14-2.98 (m, 3H), 2.81 (m,2H), 2.22-2.13 (m, 1H), 2.07 (m, 4H), 1.31 (t, J = 7.3 Hz, 3H),; 556.5 [M + H]⁺ 0.96 950

N-(5-((6-((S)-3- benzylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((1S,4S)-5-ethyl-2,5-diazabi- cyclo[2.2.1]heptane-2-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.61 (s, 1H), 8.36 (s, 1H) 8.10 (s, 1H), 7.31 (m, 4H), 7.23 (m, 1H), 6.86 (s, 1H), 6.74 (s, 1H), 6.50 (s, 1H), 6.30- 6.13 (m, 2H), 5.75-5.70 (m, 1H), 4.88 (m, 1H), 4.03 (m, 1H), 3.95- 2.85 (s, 7H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 2.97 (m, 3H), 2.84-2.77 (m, 2H), 2.15 (m, 1H), 2.05 (m, 4H), 1.26 (t, J = 7.5 Hz, 3H),; 556.5 [M + H]⁺ 1.10 951

N-(5-((6-((S)-3- benzylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2-(4- (dimethylamino)pip- eridine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.45 (s, 1H), 8.38 (s, 1H), 7.35-7.29 (m, 4H), 7.21 (d, J = 6.8 Hz, 1H), 6.88 (s, 1H), 6.74 (s, 1H), 6.59 (s, 1H), 6.33-6.13 (m,2H), 5.73 (dd, J = 9.8, 1.7 Hz, 1H), 4.93-4.84 (m, 1H), 4.06 (td, J = 8.1,4.8 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 3.07 (m, 2H), 2.84-2.68 (m, 4H), 2.43 (s, 6H), 2.23-2.13 (m, 2H), 2.13-2.02 (m, 4H),; 558.5 [M + H]⁺ 1.11 952

N-(5-((6-((S)-3- benzylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2-(4- cyclopropylpiper- azine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.59 (s, 1H), 8.38 (s, 1H), 7.36-7.27 (m, 4H), 7.24-7.18 (m, 1H), 6.86 (s, 1H), 6.78 (s, 1H), 6.59 (s, 1H), 6.40-6.23 (m, 2H), 5.75 (dd, J = 9.8, 1.7 Hz, 1H), 4.93-4.85 (m, 1H), 4.06 (td, J = 8.1,4.7 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 2.90- 2.75 (m, 9H), 2.23-2.13 (m, 1H), 2.07 (m, 1H), 1.72 (mz, 1H), 0.52 (m, 2H), 0.47 (m, 2H),; 556.5 [M + H]⁺ 1.15 953

N-(5-((6-((S)-3- benzylisoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-((2- methoxyethyl)(me thyl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.12 (s, 1H), 8.97 (s, 1H), 8.38 (s, 1H), 7.35-7.27 (m, 4H), 7.23-7.17 (m, 1H), 6.86 (s, 1H), 6.76 (s, 1H), 6.61 (s, 1H), 6.45-6.24 (m, 2H), 5.68 (dd, J = 9.8, 2.0 Hz, 1H), 4.89 (m, 1H), 4.10-3.94 (m, 2H), 3.83 (s, 3H), 3.45 (t, J = 4.9 Hz, 2H), 3.42 (s, 3H), 3.26 (dd, J = 13.6, 5.7 Hz, 1H), 2.96 (m, 2H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.75 (s, 3H), 2.23-2.13 (m, 1H), 2.06 (m, 1H),; 519.47 [M + H]⁺ 1.51 954

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)- 2-(4- isopropylpip- erazine-1- yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.57 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.36-7.27 (m, 4H), 7.25-7.19 (m, 1H), 6.86 (s, 1H), 6.82 (s, 1H), 6.59 (s, 1H), 6.39-6.22 (m, 2H) 5.74 (dd, J = 9.9, 1.7 Hz, 1H), 4.88 (m, 1H), 4.06 (td, J = 8.1, 4.7 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.81 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.92 (m, 4H), 2.84-2.75 (m, 2H), 2.72 (m, 4H), 2.17 (m, 1H), 2.07 (m, 1H), 1.12 (d, J = 6.5 Hz, 6H),; 558.5 [M + H]⁺ 1.15 955

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.44 (s, 1H), 8.38 (s, 1H), 7.33- 7.29 (m, 4H), 7.24-7.21 (m, 1H), 6.84 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.37-6.31 (m, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 9.9, 1.6 Hz, 1H), 4.91-4.85 (m, 1H), 4.04 (dd, J = 8.1, 4.7 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 3.05 (d, J = 11.5 Hz, 2H), 2.83-2.75 (m, 2H), 2.63 (s, 4H), 2.32 (s, 1H), 2.16 (dt, J = 7.8, 3.8 Hz, 1H), 2.10-2.05 (m, 3H), 1.64 (s, 4H), 1.26 (d, J = 4.3 Hz, 3H), 0.89-0.85 (m, 1H), 0.48-0.41 (m, 4H); 639.6 [M + H]⁺ 1.18 956

N-(5-((6- ((R)-3- benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)- 2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.43 (s, 1H), 8.38 (s, 1H), 7.33- 7.28 (m, 4H), 7.24-7.19 (m, 1H), 6.84 (s, 1H), 6.73 (s, 1H), 6.58 (s, 1H), 6.38- 6.31 (m, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 9.9, 1.6 Hz, 1H), 4.95- 4.79 (m, 1H), 4.05 (td, J = 8.1,4.7 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 3.05 (d, J = 11.5 Hz, 2H), 2.85-2.76 (m, 2H), 2.64 (s, 4H), 2.33 (s, 1H), 2.17 (tq, J = 8.2, 4.8, 4.0 Hz, 1H), 2.07 (tt, J = 8.0, 3.9 Hz, 3H), 1.63 (s, 4H), 1.26 (s, 3H), 0.88- 0.85 (m, 1H), 0.49-0.41 (m, 4H); 639.6 [M + H]⁺ 1.18 957

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)- 2-((1R,4R)- 2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)-4- methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.63 (s, 1H), 8.37 (s, 1H), 7.95 (s, 1H), 7.35- 7.31 (m, 4H), 7.24-7.18 (m, 1H), 6.81 (s, 1H), 6.71 (s, 1H), 6.56 (s, 1H), 6.38 (d, J = 17.0 Hz, 1H), 6.27 (dd, J = 16.8, 10.0 Hz, 1H), 5.75 (d, J = 9.8 Hz, 1H), 4.93- 4.83 (m, 1H), 4.65 (s, 1H), 4.09-4.02 (m, 2H), 4.00-3.92 (m, 1H), 3.89-3.86 (m, 1H), 3.85 (s, 3H), 3.74 (d, J = 8.0 Hz, 1H), 3.44 (d, J = 10.2 Hz, 1H), 3.29- 3.18 (m, 2H), 2.80 (dd, J = 13.7, 9.0 Hz, 1H), 2.12-1.96 (m, 4H),; 529.4 [M + H]⁺ 1.28 958

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4- (oxetane-3- yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.48 (s, 1H), 8.39 (d, J = 0.9 Hz, 1H), 7.34-7.27 (m, 4H), 7.22 (t, J = 6.6 Hz, 1H), 6.88 (s, 1H), 6.80 (s, 1H), 6.60 (s, 1H), 6.35 (dd, J = 16.9, 1.5 Hz, 1H), 6.24 (dd, J = 16.9, 9.9 Hz, 1H), 5.74 (dd, J = 10.0, 1.5 Hz, 1H), 4.89 (tt, J = 9.1,4.4 Hz, 1H), 4.72 (t, J = 6.5 Hz, 2H), 4.66 (t, J = 6.2 Hz, 2H), 4.06 (td, J = 8.1,4.7 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.60 (p, J = 6.4 Hz, 1H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.95 (t, J = 4.8 Hz, 4H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.53 (s, 3H), 2.18 (dtd, J = 12.6, 8.2, 4.8 Hz, 1H), 2.06 (dtd, J = 12.3, 8.1, 4.1 Hz, 1H), 1.25 (s, 1H),; 572.4 [M + H]⁺ 1.15 959

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4- (cyclopropyl- methyl)piperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.57 (s, 1H), 8.38 (s, 1H), 7.34-7.29 (m, 4H), 7.22 (t, J = 6.6 Hz, 1H), 6.86 (s, 1H), 6.82 (s, 1H), 6.60 (s, 1H), 6.36 (d, J = 16.4 Hz, 1H), 6.25 (dd, J = 17.0, 9.9 Hz, 1H), 5.73 (dd, J = 9.9, 1.6 Hz, 1H), 4.93-4.85 (m, 1H), 4.06 (td, J = 8.1, 4.7 Hz, 1H), 3.97 (q, J = 8.1 Hz, 1H), 3.82 (s, 3H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 2.93 (d, J = 5.6 Hz, 4H), 2.80 (dd, J = 13.7, 8.9 Hz, 2H), 2.72 (s, 3H), 2.35 (d, J = 6.6 Hz, 2H), 2.17 (ddt, J = 12.5, 8.0, 3.9 Hz, 1H), 2.07 (tt, J = 8.0, 4.0 Hz, 1H), 0.98-0.81 (m, 1H), 0.60-0.53 (m, 2H), 0.16 (q, J = 4.9 Hz, 2H),; 570.5 [M + H]⁺ 1.18 960

N-(5-((6-((S)3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(2- methyl-1H- imidazole-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 9.10 (s, 1H), 8.46 (s, 1H), 7.32 (d, J = 6.3 Hz, 4H), 7.23 (s, 1H), 7.14 (d, J = 5.9 Hz, 2H), 6.94 (s, 1H), 6.73 (s, 1H), 6.70 (s, 1H), 6.65 (s, 1H), 6.27 (d, J = 16.9 Hz, 1H), 6.04 (dd, J = 16.7, 10.2 Hz, 1H), 5.70 (d, 7 = 10.4 Hz, 1H), 4.89 (s, 1H), 4.11 (d, 7 = 8.1 Hz, 1H), 3.94 (d, 7 = 8.0 Hz, 1H), 3.88 (s, 3H), 3.29 (dd, 7 = 13.6, 5.7 Hz, 1H), 2.82 (dd, 7 = 13.6, 8.9 Hz, 1H), 2.24 (s, 3H), 2.20 (s, 1H), 2.12 (s, 1H); 512.5 [M + H]⁺ 1.38 961

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- (4-(2- (dimethylamin o)ethyl)piper- azine-1-yl)-4- methoxyphenyl)acrylamide H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.49 (s, 1H), 8.38 (s, 1H), 7.32 (m, 4H), 7.22 (s, 1H), 6.90 (s, 1H), 6.79 (s, 1H), 6.59 (s, 1H), 6.35 (d, 7 = 17.2 Hz, 1H), 6.26 (s, 1H), 5.74 (d, 7 = 11.2 Hz, 1H), 4.88 (d, 7 = 13.0 Hz, 1H), 4.05 (d, 7 = 3.2 Hz, 1H), 3.96 (d,7 = 8.0 Hz, 1H), 3.83 (s, 3H), 3.36 (d, 7 = 15.0 Hz, 2H), 3.26 (dd, 7 = 13.6, 5.7 Hz, 2H), 2.93 (s, 4H), 2.83-2.76 (m, 4H), 2.72 (s, 3H), 2.57 (s, 3H), 2.16 (d, J = 4.5 Hz, 2H), 2.06 (d,7 = 8.1 Hz, 2H),; 587.5 [M + H]⁺ 1.07 962

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- ((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.66 (s, 1H), 8.37 (s, 1H), 7.95 (s, 1H), 7.32-7.29 (m, 4H), 7.23 (dd, J = 6.0, 2.7 Hz, 1H), 6.81 (s, 1H), 6.70 (s, 1H), 6.52 (s, 1H), 6.38 (d, 7 = 16.8 Hz, 1H), 6.27 (dd, 7 = 16.9, 10.0 Hz, 1H), 5.75 (d, 7 = 10.0 Hz, 1H), 4.87 (dd, 7 = 11.4, 6.2 Hz, 1H), 4.65 (s, 1H), 4.05 (d, 7 = 7.8 Hz, 2H), 3.94- 3.88 (m, 1H), 3.85 (s, 3H), 3.75 (d, 7= 7.8 Hz, 1H), 3.42 (d, 7 = 10.2 Hz, 1H), 3.29-3.21 (m, 2H), 2.79 (dd, 7= 13.7, 8.9 Hz, 1H), 2.61 (s, 1H), 2.18- 2.13 (m, 1H), 2.07 (ddd, 7 = 11.9, 7.8, 3.7 Hz, 2H), 1.99 (d, 7 = 9.9 Hz, 1H),; 529.4 [M + H] 1.29 963

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- (4-methylpiper- azine-1-yl)piperidine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.84 (s, 1H), 8.39 (d, J = 10.9 Hz, 2H), 7.31 (d, J = 6.7 Hz, 4H), 7.24- 7.21 (m, 1H), 6.93 (s, 1H), 6.73 (s, 1H), 6.58 (s, 1H), 6.39-6.33 (m, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.76-5.71 (m, 1H), 4.87 (dd, J = 11.2, 6.2 Hz,1H), 4.05 (dd, J = 8.1, 4.7 Hz, 1H), 3.96 (d, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.65 (p, J = 6.7 Hz, 2H), 3.24 (d, J = 5.7 Hz, 1H), 3.08 (d, J = 7.4 Hz, 2H), 2.83-2.71 (m, 6H), 2.48 (s, 3H), 2.16 (tt, J = 8.1, 4.5 Hz, 3H), 2.07 (dt, J = 7.8, 4.2 Hz, 3H), 1.71 (d, J = 12.6 Hz, 2H), 1.55 (t, J = 7.4 Hz, 2H),; 613.6 [M + H] 1.09 964

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-2- ((R)-3- (dimethylamin o)pyrolidine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.68 (s, 1H), 8.53 (s, 1H), 8.35 (d, J = 0.9 Hz, 1H), 7.34-7.27 (m, 4H), 7.24-7.20 (m, 1H), 6.92 (s, 1H), 6.65 (s, 1H), 6.54 (s, 1H), 6.43- 6.28 (m, 2H), 5.71 (dd, J = 10.2, 1.8 Hz, 1H), 4.91-4.82 (m, 1H), 4.05 (dd, J = 8.1,4.8 Hz, 1H), 3.95 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.65 (p, J = 6.7 Hz, 2H), 3.28-3.23 (m, 1H), 3.09 (q, J = 7.5 Hz, 2H), 2.79 (dd, J = 13.7,8.9 Hz, 1H), 2.62 (s, 3H), 2.30 (s, 2H), 2.16 (ddt, J = 12.6, 8.1, 4.5 Hz, 2H), 2.06 (dq, J = 8.0, 4.0 Hz, 2H), 1.55 (t, J = 7.4 Hz, 2H), 544.5 [M + H] 1.13 965

N-(5-((6-((S)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- morpholinopip- eridine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.43 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.34-7.27 (m, 4H), 7.24-7.20 (m, 1H), 6.85 (s, 1H), 6.74 (s, 1H), 6.59 (s, 1H), 6.39- 6.32 (m, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 4.92-4.85 (m, 1H), 4.06 (td, J = 8.0, 4.7 Hz, 1H), 3.96 (q, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.78 (s, 3H), 3.29-3.24 (m, 1H), 3.07 (d, J = 11.5 Hz, 2H), 2.80 (dd, 7 = 13.7, 8.9 Hz, 1H), 2.72 (dd, J = 12.0, 9.5 Hz, 2H), 2.63 (s, 3H), 2.21-2.14 (m, 1H), 2.07 (tt, 7 = 8.0, 3.8 Hz, 3H), 1.57-1.53 (m, 3H), 1.45 (d, 7= 6.7 Hz, 2H),; 600.5 [M + H] 1.15 966

N-(5-((6-((R)- 3-benzylisoxazolidine-2- yl)pyrimidine- 4-yl)amino)-4- methoxy-2- morpholinophenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.92 (s, 1 H), 8.50 (s, 1H), 8.39 (d, J = 0.9 Hz, 1H), 7.34-7.28 (m, 4H), 7.24-7.20 (m, 1H), 6.89 (s, 1H), 6.76 (s, 1H), 6.60 (s, 1H), 6.40- 6.31 (m, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.75 (dd, J = 9.9,1.5 Hz, 1H), 4.89 (tq, J = 8.9, 4.1 Hz, 1H), 4.06 (td, J = 8.1,4.7 Hz, 1H), 3.97(t, J = 8.0 Hz, 1H), 3.88 (t, J = 4.6 Hz, 3H), 3.85 (s, 2H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.88 (dd, J = 6.0, 3.5 Hz, 3H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.23-2.13 (m, 1H), 2.07 (dtd, J = 12.0, 7.9, 3.9 Hz; 1H), 1.59 (s, 3H),; 517.4 [M + H] 1.53 967

N-(5-((6- ((R)-3- benzyliso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- 2-(4- (cyclopropylmethyl)pip- erazine-1- yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.52 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.34-7.27 (m, 4H), 7.24-7.20 (m, 1H), 6.89 (s, 1H), 6.79 (s, 1H), 6.59 (s, 1H), 6.36 (dd, J = 17.0, 1.6 Hz, 1H), 6.26 (dd, J = 17.2, 9.6 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.88 (tt, J = 8.9, 4.9 Hz, 1H), 4.06 (td, J = 8.0, 4.7 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.62-3.57 (m, 1H), 3.26 (dd, J = 13.7, 5.9 Hz, 1H), 3.03 (d, J = 7.7 Hz, 1H), 2.92 (t, J = 4.9 Hz, 4H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.62 (s, 3H), 2.40 (s, 3H), 2.27 (s, 1H), 2.19-2.12 (m, 1H), 2.10- 2.01 (m, 2H), 1.85 (p, J = 6.9 Hz, 1H),; 570.5 [M + H] 1.30 968

N-(5-((6- ((R)-3- benzyliso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4- methylpiper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.90 (s, 1H), 8.56 (s, 1H), 8.39 (d, J = 0.9 Hz, 1H), 7.34-7.28 (m, 4H), 7.24-7.19 (m, 1H), 6.87 (s, 1H), 6.82 (s, 1H), 6.59 (s, 1H), 6.39- 6.32 (m, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.74 (dd, J = 9.9, 1.6 Hz, 1H), 4.88 (dp, J = 9.0, 4.4 Hz, 1H), 4.06 (td, J = 8.1, 4.7 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.82 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.95 (s, 3H), 2.80 (dd, J = 13.6, 8.9 Hz, 2H), 2.37 (d, J = 6.5 Hz, 2H), 2.17 (h, J = 3.9, 3.4 Hz, 1H), 2.09-2.03 (m, 1H), 1.63 (s, 3H), 1.54 (d, J = 7.6 Hz, 2H),; 530.5 [M + H] 1.26 969

N-(5-((6-((S)-3- benzyliso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(5- methyl-2,5- diazabicyclo[2.2.1]heptane-2- yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.24 (s, 1H), 8.37 (s, 1H), 8.13 (s, 1H), 7.30 (d, J = 4.4 Hz, 5H), 7.21 (h, J = 4.2 Hz, 1H), 6.44 (dd, J = 17.1, 10.2 Hz, 1H), 6.37 (s, 1H), 6.23-6.07 (m, 2H), 5.67 (dd, J = 10.2, 2.1 Hz, 1H), 4.74 (qd, J = 7.6, 3.6 Hz, 1H), 4.16 (s, 1H), 4.04 (td, J = 8.0, 4.7 Hz, 1H), 3.76 (s, 4H), 3.11-2.98 (m, 2H), 2.80-2.69 (m, 3H), 2.10 (dq, J = 7.8, 3.9, 3.5 Hz, 1H), 1.98 (ddd, J = 11.8, 7.8, 3.7 Hz, 1H), 1.80 (d, J = 9.3 Hz, 1H), 1.68 (d, J = 9.2 Hz, 1H), 1.24 (s, 3H), 0.92-0.76 (m, 2H),; 542.5 [M + H]⁺ 1.12 970

N-(5-((6-((S)-3- benzyliso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(1- methylpiperidine-4- yl)piperazine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.54 (s, 1H), 8.38 (s, 1H), 7.34-7.27 (m, 4H), 7.22 (t, J = 6.6 Hz, 1H), 6.86 (s, 1H), 6.80 (s, 1H), 6.59 (s, 1H), 6.39-6.32 (m, 1H), 6.25 (dd, J = 17.0, 9.9 Hz, 1H), 5.74 (dd, J = 9.9, 1.7 Hz, 1H), 4.92-4.83 (m, 1H), 4.06 (td, J = 8.0, 4.7 Hz, 1H), 3.96 (q, J = 7.9 Hz, 1H), 3.81 (s, 3H), 3.26 (dd, J = 13.6, 5.8 Hz, 2H), 3.00 (d, J = 11.6 Hz, 2H), 2.93-2.89 (m, 4H), 2.83-2.77 (m, 2H), 2.75 (s, 2H), 2.34 (s, 3H), 2.17 (s, 2H), 2.06 (d, J = 8.1 Hz, 3H), 1.88 (d, J = 13.7 Hz, 2H), 1.46 (8, 2H),; 613.6 [M + H]⁺ 1.03 971

N-(5-((6-((S)-3-benzyliso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(tetrahydro- 2H-pyran- 4-yl)piperazine- 1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.54 (s, 1H), 8.39 (s, 1H), 7.32 (s, 4H), 7.23 (d, J = 6.7 Hz, 1H), 6.87 (s, 1H), 6.80 (s, 1H), 6.59 (s, 1H), 6.36 (d, J = 16.1 Hz, 1H), 6.30-6.20 (m, 1H), 5.74 (d, J = 11.4 Hz, 1H), 4.90 (s, 1H), 4.06 (d, J = 4.4 Hz, 3H), 3.96 (d, J = 8.1 Hz, 1H), 3.82 (s, 3H), 3.42 (t, J = 11.1 Hz, 2H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.93 (s, 4H), 2.84-2.69 (m, 5H), 2.52 (s, 1H), 2.17 (s, 2H), 2.06 (s, 2H), 1.83 (d, J = 10.8 Hz, 2H),; 600.5 [M + H]⁺ 1.16 972

N-(5-((6-((S)-3- benzyliso- xazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-(4- cyclopentylpiperazine- 1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.58 (s, 1H), 8.38 (s, 1H), 7.31 (s, 4H), 7.22 (s, 1H), 6.87 (s, 1H), 6.81 (s, 1H), 6.59 (s, 1H), 6.35 (d, J = 16.0 Hz, 1H), 6.26 (dd, J = 16.9, 9.8 Hz, 1H), 5.74 (d, J = 9.9 Hz, 1H), 4.87 (s, 1H), 4.03 (s, 1H), 3.95 (s, 1H), 3.81 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.93 (s, 4H), 2.80 (dd, J = 13.7, 8.9 Hz, 2H), 2.70 (s, 2H), 2.62-2.55 (m, 2H), 2.17 (s, 3H), 2.10-2.03 (m, 1H), 1.92 (s, 2H), 1.74 (s, 2H), 1.52-1.40 (m, 2H),; 584.5 [M + H]⁺ 1.22 973

N-(5-((6- ((R)-3- benzyliso- xazolidine- 2-yl)pyrimidine- 4-yl)amino)- 2-((2- (dimethyl- amino)ethyl)(methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.08 (s, 1H), 8.94 (s, 1H), 8.38 (s, 1H), 7.36-7.27 (m, 4H), 7.24-7.19 (m, 1H), 6.87 (s, 1H), 6.78 (s, 1H), 6.63 (s, 1H), 6.39 (dd, J = 16.9, 1.9 Hz, 1H), 6.29 (d, J = 11.0 Hz, 1H), 5.67 (dd, J = 9.8, 2.0 Hz, 1H), 4.93-4.85 (m, 1H), 4.10-3.96 (m, 2H), 3.83 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.87 (s, 2H), 2.83 (s, 1H), 2.71 (s, 3H), 2.27 (s, 8H), 2.20-2.14 (m, 1H), 2.06 (dtd, J = 11.6, 7.8, 3.6 Hz, 1H),; 532.5 [M + H] 1.17 974

N-(5-((6- ((R)-3- benzyliso- xazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4-(1- methylpiper- idine-4- yl)piper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.47 (s, 1H), 8.38 (s, 1H), 7.31 (d, J = 6.9 Hz, 4H), 7.22 (t, J = 6.6 Hz, 1H), 6.88 (s, 1H), 6.78 (s, 1H), 6.59 (s, 1H), 6.36 (d, J = 17.1 Hz, 1H), 6.25 (dd, J = 17.0, 9.9 Hz, 1H), 5.77-5.72 (m, 1H), 4.91-4.85 (m, 1H), 4.05 (dd, J = 8.0, 4.8 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.37-3.33 (m, 1H), 3.28 (d, J = 5.8 Hz, 1H), 3.24 (d, J = 5.7 Hz, 1H), 3.22-3.18 (m, 2H), 3.17 (s,.1H), 3.00 (t, J = 6.4 Hz, 1H), 2.92 (s, 3H), 2.72 (s, 2H), 2.56 (s, 2H), 2.17 (s, 2H), 1.26 (S, 3H), 1.12 (t, J = 7.2 Hz, 1H), 1.07 (t, J = 7.2 Hz, 1H), 0.97 (d, J = 6.6 Hz, 1H), 0.90-0.86 (m, 2H),; 613.6[M + H] 1.04 975

N-(5-((6- ((R)-3- benzyliso- xazolidine- 2-yl)pyrimidine- 4-yl)amino)- 4-methoxy- 2-(4- (tetrahydro- 2H-pyran- 4-yl)piper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.53 (s, 1H), 8.38 (s, 1H), 7.31 (d, J = 6.8 Hz, 4H), 7.24-7.20 (m, 1H), 6.88 (s, 1H), 6.80 (s, 1H), 6.59 (s, 1H), 6.36 (d, J = 16.8 Hz, 1H), 6.25 (dd, J = 16.9, 10.0 Hz, 1H), 5.77-5.71 (m, 1H), 4.93-4.85 (m, 1H), 4.09-4.04 (m, 2H), 3.96 (q, J = 8.1 Hz, 1H), 3.82 (s, 2H), 3.42 (t, J = 11.6 Hz, 2H), 3.26 (dd, J = 13.7, 5.7 Hz, 1H), 2.92 (d, J = 4.8 Hz, 3H), 2.76 (d, J = 5.9 Hz, 2H), 2.50 (d, J = 11.7 Hz, 1H), 2.17 (td, J = 8.6, 7.7, 3.8 Hz, 1H), 2.09-2.03 (m, 1H), 1.84 (d, J = 12.4 Hz, 2H), 1.69-1.63 (m, 2H), 1.26 (s, 4H), 0.90- 0.83 (m, 2H),; 600.5 [M + H] 1.18 976

N-(5-((6-((R)- 3-benzylisoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-(2-(dimethylamino)ethyl)piper- azine-1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.88 (s, 1H), 8.50 (s, 1H), 8.38 (s, 1H), 7.31 (d,J = 6.8 Hz, 4H), 7.23 (d, J = 6.5 Hz, 1H), 6.89 (s, 1H), 6.79 (s, 1H), 6.59 (s, 1H), 6.33 (s, 1H), 6.27 (d, J = 10.1 Hz, 1H), 5.74 (d, J = 10.0 Hz, 1H), 4.88 (s, 1H), 4.05 (dd, J = 8.1,4.7 Hz, 2H), 3.96 (d, J = 8.0 Hz, 1H), 3.83 (s, 3H), 3.37-3.32 (m, 3H), 3.28 (d, J = 5.8 Hz, 1H), 3.24 (d, J = 5.7 Hz, 1H), 2.93 (d, J = 4.9 Hz, 3H), 2.71 (s, 3H), 2.54 (s, 4H), 2.17 (s, 3H), 1.25 (s, 3H),; 587.5 [M + H] 1.08 977

N-(5-((6-((R)-3-benzylisoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-cyclopentylpiperazine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.89 (s, 1H), 8.58 (s, 1H), 8.38 (d, J = 1.0 Hz, 1H), 7.35-7.27 (m, 4H), 7.24-7.19 (m, 1H), 6.86 (s, 1H), 6.81 (s, 1H), 6.59 (s, 1H), 6.39-6.32 (m, 1H), 6.26 (dd, J = 17.0, 9.9 Hz, 1H), 5.74 (dd, J = 9.8, 1.7 Hz, 1H), 4.87 (dd, J = 11.4, 6.2 Hz, 1H), 4.06 (td,J = 8.1, 4.6 Hz, 1H), 3.97 (q, J = 6.7, 5.5 Hz, 1H), 3.81 (s, 3H), 3.26 (dd, J = 13.7, 5.8 Hz, 1H), 2.92 (d, J = 5.1 Hz, 3H), 2.80 (dd, J = 13.7, 8.9 Hz, 1H), 2.62 (s, 1H), 2.17 (s, 2H), 2.02 (s, 1H), 1.92 (s, 2H), 1.74 (s, 2H), 1.58 (s, 8H),; 584.5 [M + H] 1.23 978

N-(5-((6-((S)-3-benzylisoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-(2-(diethylamino)- ethoxy)piperidine-1-yl)-4- methoxyphenyl)acrylamide 630.57 [M + H]⁺ 1.23 979

N-(5-((6-((S)- 3-(2,3-dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy-2- (4-morpholinopip- eridine-1-yl)phenyl)acrylamide 668.4 [M + H]⁺ 1.25 980

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((S)-3-(2,3- dichlorobenz yl)isoxazoli- dine-2- yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (s, 1H), 8.56 (s, 1H), 8.12 (s, 1H), 7.48 (ddd, J = 21.1, 7.9, 1.6 Hz, 2H), 7.29 (t, J = 7.8 Hz, 1H), 6.79 (s, 1H), 6.66 (dd, J = 16.9, 10.2 Hz, 1H), 6.30- 6.14 (m, 2H), 5.71 (dd, J = 10.2, 2.0 Hz, 1H), 4.92 (qd, J = 8.0, 3.1 Hz, 1H), 3.77 (s, 3H), 3.35 (s, 1H), 3.13-2.91 (m, 5H), 2.84 (dt, J = 10.8, 2.8 Hz, 1H), 2.73 (t, J = 11.5 Hz, 2H), 2.63 (qd, J = 9.8, 9.4, 5.2 Hz, 2H), 2.45- 2.35 (m, 1H), 2.35-2.13 (m, 5H), 2.02 (dtd, J = 11.6, 8.0, 3.0 Hz, 1H), 1.96-1.86 (m, 1H), 1.86-1.77 (m, 2H), 1.69 (tq, J = 11.9, 8.3, 6.1 Hz, 3H), 1.49 (dh, J = 7.6, 3.6 Hz, 2H), 1.09 (d, J = 6.3 Hz, 3H), 0.57 (dtd, J = 10.1, 6.6, 4.1 Hz, 1H), 0.44-0.30 (m, 2H), 0.17 (dq, J = 9.2, 3.9 Hz, 1H),; 721.5 [M + H]⁺ 1.29 981

N-(2-(4-((S)-4- cyclopropyl-3- methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((S)-3-(2,3- dichlorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 9.01 (s, 1H), 8.59 (S, 1H), 8.13 (s, 2H), 7.48 (ddd, J = 21.8, 7.9, 1.6 Hz, 2H), 7.29 (t, J = 7.8 Hz, 1H), 6.81 (s, 1H), 6.62 (dd, J = 17.0, 10.2 Hz, 1H), 6.29 (s, 1H), 6.21 (dd, J = 16.9, 1.9 Hz, 1H), 5.74-5.69 (m, 1H), 4.92 (qd, J = 8.0, 3.1 Hz, 1H), 3.79 (s, 4H), 3.37 (s, 2H), 3.09 (dt, J = 18.5, 9.2 Hz, 5H), 2.96 (dd, J = 14.1,6.4 Hz, 2H), 2.70 (t, J = 11.6 Hz, 4H), 2.59 (s, 2H), 2.25-1.96 (m, 5H), 1.91 (s, 5H), 1.74-1.41 (m, 2H), 1.19 (s, 3H), 0.65 (s, 1H), 0.45 (s, 2H), 0.25 (s, 1H),; 721.4 [M + H]⁺ 1.45 982

N-(5-((6-((S)- 3-(2,3- dichlorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((2-(dimethylamino)ethyl)(methyl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 10.04 (s, 1H), 8.42 (s, 1H), 8.13 (d, J = 1.0 Hz, 1H), 7.51 (dd, J = 8.0, 1.6 Hz, 1H), 7.45 (dd, J = 7.8, 1.6 Hz, 1H), 7.29 (t, J = 7.8 Hz, 1H), 6.97 (s, 1H), 6.39 (dd, J = 16.9, 10.1 Hz, 1H), 6.30 (s, 1H), 6.21 (dd, J = 16.9, 2.1 Hz, 1H), 5.78-5.71 (m, 1H), 4.93 (dq, J = 11.9, 5.1, 4.0 Hz, 1H), 3.78 (s, 3H), 2.96 (dd, J = 14.1, 6.5 Hz, 2H), 2.88 (t, J = 5.8 Hz, 3H), 2.69 (s, 4H), 2.38 (t, J = 5.8 Hz, 2H), 2.18 (dt, J = 8.2, 4.4 Hz, 1H), 2.02 (dtd, J = 11.6, 8.0, 3.0 Hz, 2H), 1.90 (s, 6H), 1.00-0.91 (m, 1H), 0.85 (td, J = 8.0, 7.3, 3.1 Hz, 1H),; 600.3 [M + H]⁺ 1.31 983

N-(5-((6-((S)- 3-(2,3- dichlorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 8.98 (s, 1H), 8.58 (s, 1H), 8.12 (s, 1H), 7.51 (dd, J = 8.0, 1.6 Hz, 2H), 7.45 (dd, J = 7.8, 1.6 Hz, 2H), 7.29 (t, J = 7.8 Hz, 2H), 6.82 (s, 1H), 6.59 (dd, J = 17.0, 10.2 Hz, 1H), 6.28 (s, 1H), 6.19(dd, J = 16.9, 1.9 Hz, 1H), 5.71 (dd, J = 10.2, 1.9 Hz, 1H), 4.92 (qd, J = 8.0, 3.0 Hz, 2H), 3.79 (s, 3H), 3.16-2.90 (m, 6H), 2.85 (t, J = 4.8 Hz, 4H), 2.24 (s, 4H), 2.10 (ddtd, J = 60.6, 11.6, 7.9, 3.3 Hz, 5H),; 598.3 [M + H]⁺ 1.25 984

N-(5-((6-((S)- 3-(2,3- dichlorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-2- ((R)-3- (dimethylamino)pyrolidine-1- yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, DMSO-d₆) δ 11.26 (s, 1H), 9.58 (s, 1H), 8.57 (s, 1H), 8.12 (s, 1H), 7.81 (s, 1H), 7.51 (dd, J = 8.0, 1.5 Hz, 1H), 7.47-7.43 (m, 1H), 7.30 (t, J = 7.8 Hz, 1H), 6.90 (dd, J = 17.0, 10.2 Hz, 1H), 6.68 (s, 1H), 6.24-6.14 (m, 2H), 5.68 (dd, J = 10.2, 2.1 Hz, 1H), 4.92 (qd, J = 7.9, 3.0 Hz, 1H), 3.80 (s, 3H), 3.60 (dt, J = 9.4, 2.7 Hz, 2H), 3.48-3.39 (m, 1H), 3.37 (s, 2H), 3.32 (dd, J = 11.0, 6.4 Hz, 1H), 3.11 (dd, J = 7.5, 4.4 Hz, 3H), 2.96 (dd, J = 14.2, 6.7 Hz, 2H), 2.78 (d, J = 4.7 Hz, 6H), 2.29 (dq, J = 12.7, 7.3, 5.6 Hz, 2H), 2.19 (dtd, J = 12.9, 8.3, 5.0 Hz, 1H), 2.02 (dtd, J = 11.6, 7.9, 3.0 Hz, 1H),; 612.3 [M + H]⁺ 1.24 985

N-(2-(4-(4- cyclopropylpip- erazine-1- yl)piperidine- 1-yl)-4- methoxy-5- ((6-((S)-3- (pyridine-3- ylmethyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.79 (s, 1H), 8.52 (d, J = 2.3 Hz, 1H), 8.45 (dd, J = 4.9, 1.6 Hz, 1H), 8.31 (s, 1H), 7.70 (dt, J = 7.9, 2.1 Hz, 1H), 7.22 (dd, J = 7.8, 4.8 Hz, 1H), 7.01 (s, 1H), 6.69 (s, 1H), 6.57 (s, 1H), 6.39-6.30 (m, 2H), 5.74 (td, J = 9.6, 9.2, 2.1 Hz, 2H), 4.88 (qd, J = 7.3, 3.8 Hz, 1H), 3.81 (s, 3H), 3.17-3.02 (m, 5H), 2.72 (q, J = 11.6 Hz, 4H), 2.62 (s, 1H), 2.26 (dtd, J = 12.2, 8.1, 4.2 Hz, 2H), 2.17 (d, J = 12.0 Hz, 2H), 2.12-1.99 (m, 2H), 1.98-1.85 (m, 3H), 1.79 (t, J = 5.1 Hz, 1H), 1.47 (d, J = 6.7 Hz, 3H), 1.24 (s, 4H), 0.51 (t, J = 7.0 Hz, 5H),; 640.5 [M + H] 1.09 986

N-(2-(4- ((1S,4S)-2- oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine- 1-yl)-4-methoxy-5- ((6-((S)-3-(pyridine-3- ylmethyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.53 (d, J = 2.2 Hz, 1H), 8.46 (q, J = 1.8 Hz, 2H), 8.32 (s, 1H), 7.70 (dt, J = 7.9, 2.0 Hz, 1H), 7.22 (dd, J = 7.8, 4.8 Hz, 1H), 6.94 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.35-6.25 (m, 2H), 5.72 (dd, J = 9.7, 1.9 Hz, 1H), 4.89 (qd, J = 7.2, 3.8 Hz, 1H), 3.83 (s, 3H), 3.73- 3.66 (m, 2H), 3.39 (q, J = 6.5 Hz, 1H), 3.30 (td, J = 7.3, 5.2 Hz, 1H), 3.23 (d, J = 10.1 Hz, 2H), 3.14 (dd, J = 14.0, 6.7 Hz, 2H), 2.81- 2.59 (m, 6H), 2.45 (s, 1H), 2.27 (dtd, J = 12.3, 8.2, 4.3 Hz, 2H), 2.09-1.99 (m, 4H), 1.99- 1.91 (m, 2H), 1.88 (d, J = 9.9 Hz, 2H), 1.25 (s, 2H),; 613.3 [M + H]⁺ 1.03 987

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine- 1-yl)-4- methoxy-5- ((6-((S)-3- (pyridine-3-ylmethyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.50-8.42 (m, 2H), 8.32 (s, 1H), 7.69 (d, J = 7.9 Hz, 1H), 7.21 (dd, J = 7.8, 4.8 Hz, 1H), 6.92 (s, 1H), 6.72 (s, 1H), 6.58 (s, 1H), 6.34-6.23 (m, 2H), 5.72 (dd, J = 9.6, 1.9 Hz, 1H), 4.88 (qd, J = 7.3, 3.8 Hz, 1H), 3.99- 3.88 (m, 2H), 3.82 (s, 3H), 3.69 (d, J = 8.4 Hz, 1H), 3.13 (dd, J = 14.0, 6.8 Hz, 1H), 3.09- 2.97 (m, 3H), 2.74 (tdd, J = 12.1, 6.9, 3.3 Hz, 4H), 2.61 (d, J = 10.3 Hz, 2H), 2.49 (s, 1H), 2.26 (dtd, J = 12.5, 8.2, 4.3 Hz, 2H), 2.03 (dq, J = 11.6, 3.8 Hz, 4H), 1.89 (d, J = 10.3 Hz, 2H), 1.34-1.21 (m, 4H),; 613.5 [M + H]* 1.05 988

N-(2-(4-(4- cyclopropyl piperazine- 1-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (pyridine-3- ylmethyl)iso- xazolidine- 2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.77 (s, 1H), 8.33 (s, 1H), 8.30 (s, 1H), 7.70 (d, J = 7.7 Hz, 1H), 7.09 (s, 1H), 6.67 (s, 1H), 6.55 (s, 1H), 6.36 (d, J = 5.7 Hz, 2H), 5.74 (t, J = 5.8 Hz, 1H), 5.29 (s, 1H), 4.88 (dq, J = 7.5, 3.5 Hz, 1H), 4.52 (t, J = 16.1 Hz, 1H), 3.81 (s, 4H), 3.64 (h, J = 6.7 Hz, 2H), 3.32-3.27 (m, 1H), 3.10-3.03 (m, 3H), 2.90-2.66 (m, 8H), 2.27 (dhept, J = 11.9, 3.9 Hz, 5H), 2.04 (dtt, J = 14.7, 10.5, 5.1 Hz, 2H), 1.92 (s, 2H), 0.86- 0.80 (m, 5H), 0.57 (d, J = 6.4 Hz, 4H),; 640.5 [M + H]⁺ 1.09 989

N-(2-(4- ((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(pyridine-3- ylmethyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.80 (s, 1H), 8.43 (s, 1H), 8.32 (s, 1H), 7.70 (d, J = 7.8 Hz, 1H), 6.99 (s, 1H), 6.71 (d, J = 4.0 Hz, 1H), 6.59 (s, 1H), 6.39-6.32 (m, 2H), 5.77- 5.72 (m, 1H), 5.29 (s, 1H), 4.89 (tt, J = 11.1, 5.5 Hz, 1H), 4.57 (s, 1H), 3.99-3.86 (m, 3H), 3.82 (s, 3H), 3.65 (p, J = 6.7 Hz, 2H), 3.31 (td, J = 7.3, 5.3 Hz, 2H), 3.11 (ddd, J = 25.4, 14.4, 7.1 Hz, 5H), 2.99 (dt, J = 15.0, 7.8 Hz, 2H), 2.27 (dtd, J = 12.4, 8.1, 4.2 Hz, 3H), 2.17 (dt, J = 14.9, 7.4 Hz, 2H), 1.55 (t, J = 7.4 Hz, 2H), 1.50-1.46 (m, 5H), 0.90-0.78 (m, 2H),; 613.4 [M + H]⁺ 1.02 990

N-(2-(4- ((1R,4R)-2- oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine- 1-yl)-4- methoxy-5- ((6-((R)-3- (pyridine-3- ylmethyl)iso- xazolidine-2- yl)pyrimidine- 4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.43 (s, 1H), 8.32 (s, 1H), 7.70 (d, J = 7.8 Hz, 1H), 7.23 (s, 1H), 6.92 (s, 1H), 6.70 (s, 1H), 6.60 (s, 1H), 6.37-6.32 (m, 2H), 5.74 (dd, J = 7.2, 4.3 Hz, 1H), 4.89 (qd, J = 7.3, 3.8 Hz, 1H), 4.56 (s, 1H), 3.95 (q, J = 8.1 Hz, 1H), 3.87 (dt, J = 13.9, 7.1 Hz, 2H), 3.82 (s, 3H), 3.77 (d, J = 9.2 Hz, 1H), 3.43 (p, J = 7.4, 6.4 Hz, 2H), 3.37-3.25 (m, 2H), 3.11 (ddd, J = 25.4, 14.5, 7.2 Hz, 4H), 2.96 (dt, J = 22.6, 7.8 Hz, 2H), 2.86 (dd, J = 14.1, 7.3 Hz, 2H), 2.26 (ddd, J = 12.9, 8.5, 4.5 Hz, 2H), 2.15 (td, J = 15.7, 14.2, 6.7 Hz, 2H), 1.48 (s, 3H), 1.29-1.22 (m, 4H), 1.19 (t, J = 7.3 Hz, 2H),; 613.5 [M + H]⁺ 1.03 991

N-(5-((6-((S)- 3-(3- fluorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxy-2-(4- methylpiper- azine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl) δ 8.88 (s, 1H), 8.51 (s, 1H), 8.37 (s, 1H), 7.29-7.22 (m, 1H), 7.10 (d, J = 7.6 Hz, 1H), 7.04 (d, J = 9.9 Hz, 1H), 6.94-6.87 (m, 2H), 6.79 (s, 1H), 6.59 (s, 1H), 6.39-6.21 (m, 2H), 5.74 (dd, J = 9.9, 1.4 Hz, 1H), 4.92-4.83 (m, 1H), 4.07 (td, J = 8.1,4.6 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.23 (dd, J = 13.8, 6.2 Hz, 1H), 2.97-2.88 (m, 4H), 2.80 (dd, J = 13.8, 8.3 Hz, 1H), 2.70-2.56 (m, 3H), 2.41 (s, 3H), 2.27-2.17 (m, 1H), 2.09-1.99 (m, 1H), 1.77-1.62 (m, 2H); 548.32 [M + H]⁺ 1.14 992

N-(2-((2- (dimethylamino)ethyl)(methyl)- amino)-5-((6-((S)-3-(3- fluorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 9.47 (s, 1H), 8.81 (s, 1H), 8.36 (s, 1H), 7.29-7.21 (m, 1H), 7.10 (d, J = 7.7 Hz, 1H), 7.04 (d, J = 9.9 Hz, 1H), 7.00-6.87 (m, 2H), 6.68 (s, 1H), 6.63 (s, 1H), 6.40 (dd, J = 16.8, 1.9 Hz, 1H), 5.70 (dd, J = 10.2, 1.9 Hz, 1H), 4.94-4.80 (m, 1H), 4.09 (td, J = 8.1, 4.6 Hz, 1H), 3.99 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.49 (s, 3H), 3.33-3.25 (m, 2H), 3.22 (dd, J = 13.8, 6.3 Hz, 1H), 2.85-2.77 (m, 6H), 2.74 (s, 3H), 2.31-2.17 (m, 1H), 2.10-2.01 (m, 1H); 550.39 [M + H]⁺ 1.18 993

N-(2-(4-((S)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((S)-3-(3- fluorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.42 (s, 1H), 8.37 (s, 1H), 7.29-7.21 (m, 5H), 7.10 (d, J = 7.7 Hz, 1H), 7.04 (d, J = 9.8 Hz, 1H), 6.90 (td, J = 8.5, 2.2 Hz, 1H), 6.86 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.38- 6.20 (m, 2H), 5.76-5.71 (m, 1H), 4.92- 4.83 (m, 1H), 4.06 (td, J = 8.1,4.5 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.22 (dd, J = 13.8,6.2 Hz, 1H), 3.10-2.86 (m, 5H), 2.83-2.49 (m, 5H), 2.43-2.16 (m, 3H), 2.14-1.99 (m, 4H), 1.77-1.52 (m, 3H), 1.22 (d, J = 5.9 Hz, 3H), 0.71-0.55 (m, 2H), 0.50-0.28 (m, 2H); 671.61 [M + H]⁺ 1.19 994

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((S)-3-(3- fluorobenzyl)- isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.42 (s, 1H), 8.37 (s, 1H), 7.28-7.22 (m, 1H), 7.10 (d, J = 7.7 Hz, 1H), 7.04 (d, J = 9.9 Hz, 1H), 6.91 (td, J = 8.5, 2.1 Hz, 1H), 6.85 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.38- 6.19 (m, 2H), 5.77-5.70 (m, 1H), 4.92- 4.83 (m, 1H), 4.06 (td, J = 8.1, 4.6 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.22 (dd, J = 13.8, 6.2 Hz, 1H), 3.09-2.85 (m, 5H), 2.83-2.67 (m, 3H), 2.64-2.42 (m, 2H), 2.41-2.17 (m, 3H), 2.13-1.97 (m, 4H), 1.73-1.50 (m, 3H), 1.22 (d, J = 6.1 Hz, 3H), 0.71-0.54 (m, 2H), 0.49-0.29 (m, 2H); 671.51 [M +H]⁺ 1.19 995

N-(2-(4-((1R,5S)-8- cyclopropyl- 3,8-diazabicyclo[3.2.1]octan- 3-yl)piperidine- 1-yl)-5-((6- ((S)-3-(3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.45 (s, 1H), 8.36 (s, 1H), 7.28-7.21 (m, 1H), 7.10 (d, J = 7.6 Hz, 1H), 7.04 (d, J = 9.8 Hz, 1H), 6.90 (td, J = 8.4, 2.1 Hz, 1H), 6.85 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.39-6.21 (m, 2H), 5.74 (dd, J = 9.8, 1.6 Hz, 1H), 4.93-4.83 (m, 1H), 4.06 (td, J = 8.1,4.6 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.35-3.17 (m, 3H), 3.06-2.96 (m, 2H), 2.80 (dd, J = 13.8, 8.3 Hz, 1H), 2.73-2.63 (m, 4H), 2.47-2.17 (m, 4H), 2.09-1.80 (m, 8H), 1.73-1.54 (m, 2H), 0.59- 0.27 (m, 4H); 683.47 [M + H]⁺ 1.22 996

N-(5-((6-((S)-3-(3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4-methoxy- 2-(4-morpholinopip- eridine-1-yl)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.85 (s, 1H), 8.42 (s, 1H), 8.37 (s, 1H), 7.29-7.20 (m, 1H), 7.10 (d, J = 7.6 Hz, 1H), 7.04 (d, J = 9.9 Hz, 1H), 6.94-6.85 (m, 2H), 6.74 (s, 1H), 6.59 (s, 1H), 6.39-6.20 (m, 2H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.92-4.83 (m, 1H), 4.06 (td, J = 8.1, 4.6 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.83-3.73 (m, 4H), 3.22 (dd, J = 13.8, 6.2 Hz, 1H), 3.12-3.02 (m, 2H), 2.84-2.60 (m, 7H), 2.41-2.28 (m, 1H), 2.26-2.17 (m, 1H), 2.13- 2.00 (m, 3H), 1.73-1.57 (m, 2H); 618.48 [M + H]⁺ 1.14 997

N-(2-(4-(4- cyclopropyl- piperazine-1- yl)piperidine- 1-yl)-5-((6-((S)-3-(3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ; 657.44 [M + H]⁺ 1.21 998

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine- 1-yl)-5-((6-((S)-3-(3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ; 630.53 [M + H]⁺ 1.17 999

N-(2-(4-(4- cyclopropylpiperazine-1- yl)piperidine- 1-yl)-5-((6-((S)-3- (3-fluoro-2-methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ′H NMR (400 MHz, Methanol-d₄) δ 8.25 (s, 1H), 8.16 (s, 1H), 7.13-7.08 (m, 2H), 6.95-6.87 (m, 2H), 6.61-6.48 (m, 1H), 6.40-6.32 (m, 1H), 6.29 (s, 1H), 5.81 (d, J = 10.2 Hz, 1H), 4.14-4.09 (m, 1H), 3.93-3.86 (m, 5H), 3.22-3.17 (m, 3H), 3.04-2.97 (m, 3H), 2.91-2.80 (m, 8H), 2.33 (d, 3H), 2.27-2.21 (m, 1H), 2.17-2.11 (m, 3H), 1.90-1.78 (m, 4H), 0.60-0.53 (m, 2H), 0.53-0.43 (m, 2H); 671.4 [M +H]⁺ 1.22 1000

N-(2-((2-(dimethyl- amino)ethyl)(methyl)amino)-5-((6- ((S)-3-(3-fluoro-2- methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 7.98 (s, 1H), 7.14-7.09 (m, 2H), 6.97-6.86 (m, 2H), 6.60-6.49 (m, 1H), 6.47-6.36 (m, 2H), 5.91-5.81 (m, 1H), 4.17-4.11 (m, 1H), 3.95-3.84 (m, 5H), 3.45-3.38 (m, 2H), 3.25-3.19 (m, 1H), 3.16-3.12 (m, 2H), 2.90-2.82 (m, 1H), 2.77 (s, 6H), 2.73 (s, 3H), 2.34 (d, J = 2.2 Hz, 3H), 2.29-2.20 (m, 1H), 2.20- 2.09 (m, 1H); 564.3 [M + H]⁺ 1.23 1001

N-(5-((6-((S)-3-(3-fluoro-2- methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- 2-(4-methylpiper-azine-1- yl)phenyl)acryla.mide ¹H NMR (400 MHz, Methanol-d₄) δ 8.30 (s, 1H), 8.17 (s, 1H), 7.15-7.05 (m, 2H), 6.97-6.84 (m, 2H), 6.63-6.44 (m, 1H), 6.40-6.29 (m, 2H), 5.82 (d, J = 10.3 Hz, 1H), 4.16-4.09 (m, 1H), 3.95- 3.83 (m, 5H), 3.24-3.17 (m, 1H), 3.10- 3.04 (m, 4H), 3.04-2.93 (m, 4H), 2.89- 2.81 (m, 1H), 2.62 (s, 3H), 2.33 (s, 3H), 2.30-2.19 (m, 1H), 2.19-2.09 (m, 1H); 645.3 [M + H]⁺ 1.16 1002

N-(2-((R)-3-(dimethyl- amino)pyrol- idine-1-yl)-5-((6-((S)- 3-(3-fluoro- 2-methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.14 (s, 1H), 7.70 (s, 1H), 7.15-7.06 (m, 2H), 6.95-6.86 (m, 1H), 6.71 (s, 1H), 6.62-6.48 (m, 1H), 6.42-6.30 (m, 1H), 6.20 (s, 1H), 5.81 (dd, J = 1.7, 10.2 Hz, 1H), 4.14-4.06 (m, 1H), 3.94-3.81 (m, 4H), 3.78-3.70 (m, 1H), 3.47-3.34 (m, 4H), 3.32-3.16 (m, 3H), 2.89-2.80 (m, 1H), 2.32 (d, J = 2.2 Hz, 3H), 2.27-2.18 (m, 1H), 2.18-2.04 (m,2H), 1.43-1.35 (m, 6H); 576.3 [M + H]⁺ 1.15 1003

N-(2-(4-ethylpiper- azine-1-yl)-5-((6-(S)- (3-(3-fluoro-2-methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyph enyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (s, 1H), 8.17 (s, 1H), 7.17-7.05 (m, 2H), 6.98-6.83 (m, 2H), 6.64-6.49 (m, 1H), 6.42-6.28 (m, 2H), 5.82 (d, J = 10.4 Hz, 1H), 4.13 (td, J = 4.5, 7.9 Hz, 1H), 4.00-3.79 (m, 5H), 3.23-3.17 (m, 1H), 3.17-3.06 (m, 8H), 2.99-2.93 (m, 2H), 2.89-2.80 (m, 1H), 2.33 (d, J = 2.8 Hz, 3H), 2.26-2.20 (m, 1H), 2.17- 2.09 (m, 1H), 1.33-1.30 (m, 3H); 576.3 [M + H]⁺ 1.19 1004

N-(2-(4-((R)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6- ((S)-3-(3-fluoro-2- methylbenzyl)isoxazolidine- 2-yl)pyrimidine- 4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.16 (s, 1H), 7.17-7.04 (m, 2H), 6.96- 6.84 (m, 2H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.40-6.26 (m, 2H), 5.81 (d, J = 10.3 Hz, 1H), 4.15-4.09 (m, 1H), 3.96-3.79 (m, 5H), 3.23-3.17 (m, 4H), 2.88-2.70 (m, 6H), 2.69-2.59 (m, 2H), 2.46-2.37 (m, 1H), 2.33 (d, J = 2.2 Hz, 3H), 2.30- 2.18 (m, 1H), 2.18-2.09 (m, 3H), 1.92- 1.82 (m, 2H), 1.77-1.71 (m, 1H), 1.30 (d, J = 6.2 Hz, 3H), 0.81-0.72 (m, 1H), 0.72- 0.62 (m, 1H), 0.62-0.52 (m, 1H), 0.45- 0.32 (m, 1H); 685.4 [M + H]⁺ 1.23 1005

N-(2-(4-((S)- 4-cyclopropyl- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((S)-3-(3-fluoro-2- methylbenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.27 (s, 1H), 8.16 (s, 1H), 7.16-7.03 (m, 2H), 6.95- 6.84 (m, 2H), 6.64-6.47 (m, 1H), 6.41- 6.23 (m, 2H), 5.87-5.74 (m, 1H), 4.15- 4.08 (m, 1H), 3.93-3.84 (m, 4H), 3.30- 3.23 (m, 1H), 3.22-3.12 (m, 5H), 2.88- 2.61 (m, 7H), 2.47-2.37 (m, 1H), 2.32 (d, J = 2.2 Hz, 3H), 2.30-2.19 (m, 1H), 2.19- 2.10 (m, 3H), 1.93-1.81 (m, 2H), 1.76- 1.72 (m, 1H), 1.30 (d, J = 6.3 Hz, 3H), 0.80- 0.70 (m, 1H), 0.70-0.62 (m, 1H), 0.62- 0.51 (m, 1H), 0.44-0.36 (m, 1H); 685.4 [M + H]⁺ 1.23 1006

N-(5-((6-((S)-3-(2-chloro-3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-2-(4- cyclopropyl- piperazine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.28 (s, 1H), 8.14 (s, 1H), 7.32-7.20 (m, 2H), 7.17- 7.04 (m, 1H), 6.92 (s, 1H), 6.54 (dd, J = 10.2, 17.0 Hz, 1H), 6.39-6.25 (m, 2H), 5.82 (d, J = 10.2 Hz, 1H), 4.14 (td, J = 4.7, 8.0 Hz, 1H), 3.96-3.83 (m, 4H), 3.39- 3.34 (m, 1H), 3.23-3.16 (m, 1H), 3.11- 3.04 (m, 1H), 3.01-2.87 (m, 8H), 2.33- 2.23 (m, 1H), 2.18-2.07 (m, 1H), 1.92- 1.85 (m, 1H), 0.63-0.56 (m, 2H), 0.56- 0.49 (m, 2H); 608.3 [M + H]⁺ 1.21 1007

N-(5-((6-((S)- 3-(2-chloro-3-fluorobenzyl)- isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.14 (s, 1H), 7.33-7.20 (m, 2H), 7.17- 7.04 (m, 1H), 6.91 (s, 1H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.44-6.23 (m, 2H), 5.81 (d, J = 10.2 Hz, 1H), 4.17-4.10 (m, 1H), 3.97-3.80 (m, 5H), 3.24-3.14 (m, 3H), 3.14-3.03 (m, 2H), 3.03-2.92 (m, 3H), 2.92-2.76 (m, 7H), 2.33-2.22 (m, 1H), 2.18-2.07 (m, 3H), 1.90-1.78 (m, 3H), 0.60-0.50 (m, 2H), 0.50-0.43 (m, 2H); 691.3 [M + H]⁺ 1.19 1008

N-(5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-2- (4-ethylpiperazine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.85 (s, 1H), 8.55 (s, 1H), 8.32 (s, 1H), 7.34 (ddd, J = 13.6, 7.8, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.92 (s, 1H), 6.80 (s, 1H), 6.59 (s, 1H), 6.25 (dd, J = 16.9, 9.9 Hz, 1H), 5.73 (dd, J = 9.8, 1.7 Hz, 1H), 5.00 (qd, J = 7.4, 3.3 Hz, 1H), 3.80 (s, 3H), 3.24 (dd, J = 14.2, 7.4 Hz, 1H), 3.07 (dd, J = 14.2, 7.1 Hz, 1H), 2.92 (t, J = 4.9 Hz, 5H), 2.76-2.56 (m, 4H), 2.51 (q, J = 7.2 Hz, 3H), 2.25 (dtd, J = 12.9, 8.3, 4.9 Hz, 2H), 2.07 (dtd, J = 11.8, 7.8, 3.4 Hz, 1H), 1.25 (d, J = 2.9 Hz, 2H), 1.14 (t, J = 12 Hz, 4H),; 612.3 [M + H]⁺ 1.41 1009

N-(2-(4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.81 (s, 1H), 8.42 (s, 1H), 8.32 (s, 1H), 7.34 (ddd, J = 12.7, 7.8, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.89 (s, 1H), 6.72 (s, 1H), 6.58 (s, 1H), 6.24 (dd, J = 16.9, 9.9 Hz, 1H), 5.72 (dd, J = 9.9, 1.7 Hz, 1H), 5.00 (qd, J = 7.5, 3.4 Hz, 1H), 3.81 (s, 3H), 3.24 (dd, J = 14.2, 7.4 Hz, 1H), 3.06 (dt, J = 13.6, 5.4 Hz, 4H), 2.78-2.62 (m, 10H), 2.38 (s, 1H), 2.25 (dtd, J = 12.8, 8.3, 4.8 Hz, 2H), 2.07 (tt, J = 11.8, 3.4 Hz, 3H), 1.77-1.64 (m, 4H), 1.31-1.21 (m, 4H), 0.86 (dtd, J = 12.7, 6.5, 1.9 Hz, 3H), 0.51- 0.40 (m, 4H),; 707.4 [M + H]⁺ 1.31 1010

N-(5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4- ((2S,6R)-2,6-dimethylmorpholino)piper- idine-1-yl)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.41 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.34 (ddd, J = 12.9, 7.9, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.88 (s, 1H), 6.73 (s, 1H), 6.58 (s, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 5.00 (qd, J = 7.4, 3.4 Hz, 1H), 3.82 (s, 3H), 3.70 (dqd, J = 12.4, 6.2, 1.9 Hz, 2H), 3.24 (dd, J = 14.2, 7.4 Hz, 1H), 3.11- 3.02 (m, 3H), 2.87 (d, J = 10.8 Hz, 2H), 2.76-2.65 (m, 2H), 2.32-2.19 (m, 2H), 2.07 (dtd, J = 12.0, 7.4, 7.0, 3.1 Hz, 4H), 1.89 (t, J = 10.6 Hz, 3H), 1.65 (qd, J = 12.1, 3.9 Hz, 2H), 1.20 (d, J = 6.3 Hz, 6H),; 696.4 [M + H]⁺ 1.27 1011

N-(5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy-2- (4-((R)-2-methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.42 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.34 (ddd, J = 12.9, 7.9, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.88 (s, 1H), 6.73 (s, 1H), 6.58 (s, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (dd, J = 9.9, 1.6 Hz, 1H), 5.00 (qd, J = 7.4, 3.3 Hz, 1H), 4.11 (td, J = 8.1,4.8 Hz, 1H), 4.00 (q, J = 8.1 Hz, 1H), 3.92 (ddd, J = 11.3, 3.4, 1.5 Hz, 1H), 3.82 (s, 3H), 3.75-3.60 (m, 2H), 3.24 (dd, J = 14.2, 7.4 Hz, 1H), 3.06 (dt, J = 15.4, 6.0 Hz, 3H), 2.92-2.79 (m, 2H), 2.76-2.66 (m, 2H), 2.27 (ddt, J = 25.5, 12.9, 4.5 Hz, 4H), 2.17-2.01 (m, 4H), 1.96 (t, J = 10.5 Hz, 2H), 1.64 (qt, J = 12.1,3.6 Hz, 2H), 1.18 (d, J = 6.3 Hz, 4H),; 682.4 [M + H]⁺ 1.26 1012

N-(2-(4-((1S,4S)-2- oxa-5-azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(2,3-dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine-4-yl)amino)- 4-methoxy-phenyl)acrylamide 680.4 [M + H]⁺ 1.24 1013

N-(5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- 2-(4-((S)-2-methylmorpholino)piperidine-1- yl)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.83 (s, 1H), 8.43 (s, 1H), 8.33 (d, J = 1.0 Hz, 1H), 7.35 (ddd, J = 12.6, 7.8, 1.5 Hz, 2H), 7.13 (t, J = 7.8 Hz, 1H), 6.85 (s, 1H), 6.74 (d, J = 4.6 Hz, 1H), 6.59 (s, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.5 Hz, 1H), 5.01 (qd, J = 7.4, 3.4 Hz, 1H), 3.83 (s, 4H), 3.74-3.61 (m, 3H), 3.25 (dd, J = 14.2, 7.4 Hz, 1H), 3.08 (dd, J = 15.0, 8.5 Hz, 4H), 2.87 (dd, J = 22.8, 11.2 Hz, 2H), 2.72 (q, J = 11.3 Hz, 3H), 2.29 (ddt, J = 13.8, 8.6, 3.8 Hz, 4H), 2.08-2.04 (m, 2H), 1.96 (t, J = 10.5 Hz, 1H), 1.25 (s, 3H), 1.21-1.15 (m, 4H),; 684.2 [M + H]⁺ 1.31 1014

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(2,3-dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.46 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.34 (ddd, J = 13.4, 7.8, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.89 (s, 1H), 6.74 (s, 1H), 6.58 (d, J = 1.1 Hz, 1H), 6.21 (dd, J = 17.0, 10.0 Hz, 1H), 5.71 (dd, J = 10.0, 1.5 Hz, 1H), 5.00 (qd, J = 7.4, 3.4 Hz, 1H), 4.09 (td, J = 8.1,3.3 Hz, 2H), 3.82 (s, 3H), 3.77-3.73 (m, 1H), 3.65 (dd, J = 7.9, 1.6 Hz, 1H), 3.27-2.97 (m, 1H), 2.75 (qd, J = 11.4, 2.5 Hz, 2H), 2.56 (tt, J = 10.1,3.9 Hz, 1H), 2.49 (dd, J = 10.0, 1.4 Hz, 1H), 2.24-2.19 (m, 2H), 2.07 (ddd, J = 16.4, 8.1,3.8 Hz, 2H), 2.02-1.94 (m, 1H), 1.94- 1.87 (m, 2H), 1.84-1.77 (m, 1H), 1.72-1.58 (m, 3H),; 680.4 [M + H]⁺ 1.25 1015

N-(5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4-isopropylpip- erazine-1-yl)piperidine- 1-yl)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.80 (s, 1H), 8.37 (s, 1H), 8.31 (s, 1H), 7.39-7.31 (m, 2H), 7.14 (d, J = 7.9 Hz, 1H), 6.72 (s, 1H), 6.57 (s, 1H), 6.36 (ddd, J = 17.0, 6.6, 1.8 Hz, 2H), 6.26 (dd, J = 16.9, 9.8 Hz, 1H), 5.74 (dd, J = 9.8, 1.7 Hz, 1H), 5.00 (qd, J = 7.4, 3.4 Hz, 1H), 3.83 (s, 3H), 3.65 (h, J = 6.7 Hz, 3H), 3.33 (qd, J = 7.2, 5.1 Hz, 2H), 3.23 (d, J = 7.4 Hz, 1H), 3.16 (s, 4H), 3.09 (qd, J = 7.1, 5.2 Hz, 8H), 2.72 (s, 2H), 2.26 (qd, J = 8.0, 4.1 Hz, 1H), 2.09 (ddt, J = 12.2, 8.2, 4.0 Hz, 4H), 1.76- 1.67 (m, 3H), 1.56 (t, J = 7.5 Hz, 5H), 1.41 (d, J = 6.6 Hz, 6H),; 709.5[M + H]⁺ 1.23 1016

N-(5-((6-((S)-3-(3-chloro-2- fluorobenzyl)- isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-2-((2- (dimethylamino)ethyl)(methyl)amino)- 4-methoxyphenyl)acrylamide ; 584.41 [M + H]⁺ 1.32 1017

N-(5-((6-((S)-3-(3-chloro-2- fluorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4- cyclopropylpiperazine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.58 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.91 (s, 1H), 6.78 (s, 1H), 6.60 (s, 1H), 6.39-6.22 (m, 2H), 5.74 (dd, J = 9.8, 1.5 Hz, 1H), 4.96-4.88 (m, 1H), 4.09 (td, J = 8.1, 4.7 Hz, 1H), 3.98 (q, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.15 (dd, J = 14.0, 6.6 Hz, 1H), 2.98 (dd, J = 13.9, 7.6 Hz, 1H), 2.89-2.84 (m, 4H), 2.31-2.20 (m, 1H), 2.10-2.00 (m, 1H), 1.75- 1.69 (m, 1H), 0.56-0.50 (m, 2H), 0.50- 0.44 (m, 2H),; 608.42 [M + H]⁺ 1.31 1018

N-(5-((6-((S)-3-(3-chloro-2- fluorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4-((S)-4- cyclopropyl-3-methylpiper- azine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.43 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.85 (d, J = 4.6 Hz, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.38-6.19 (m, 2H), 5.73 (dd, J = 10.0, 1.2 Hz, 1H), 4.96-4.88 (m, 1H), 4.08 (td, J = 8.1,4.7 H, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.15 (dd, J = 14.0, 7.0 Hz, 1H), 3.08-2.93 (m, 5H), 2.91-2.84 (m, 1H), 2.77-2.66 (m, 2H), 2.58-2.43 (m, 2H), 2.34- 2.21 (m, 3H), 2.10-1.97 (m, 4H), 1.71- 1.50 (m, 3H), 1.21 (d, J = 6.3 Hz, 3H), 0.69- 0.56 (m, 2H), 0.48-0.40 (m, 1H), 0.36-0.28 (m, 1H); 705.53 [M + H]⁺ 1.33 1019

N-(5-((6-((S)-3-(3-chloro-2- fluorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4-((R)-4- cyclopropyl-3-methylpiper- azine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.43 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.85 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.37-6.18 (m, 2H), 5.73 (dd, J = 10.1, 1.1 Hz, 1H), 4.96-4.87 (m, 1H), 4.08 (td, J = 8.1, 4.7 Hz, 1H), 3.97 (q, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.15 (dd, J = 14.0, 6.7 Hz, 1H), 3.08-2.93 (m, 5H), 2.91-2.84 (m, 1H), 2.76- 2.65 (m, 2H), 2.57-2.43 (m, 2H), 2.35- 2.20 (m, 3H), 2.10-1.96 (m, 4H), 1.76-1.50 (m, 3H), 1.21 (d, J = 6.3 Hz, 3H), 0.69-0.56 (m, 2H), 0.47-0.39 (m, 1H), 0.36-0.28 (m, 1H); 705.53 [M + H]⁺ 1.34 1020

N-(5-((6-((S)-3-(3-chloro-2- fluorobenzyl)isoxazoli- dine-2-yl)pyrimidine- 4-yl)amino)-2-(4-(4- cyclopropylpiperazine- 1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.43 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.85 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.37-6.19 (m, 2H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.96-4.87 (m, 1H), 4.08 (td, J = 8.1, 4.7 Hz, 1H), 3.97 (q, J = 8.0 Hz, 1H), 3.82 (s, 3H), 3.15 (dd, J = 14.2, 6.5 Hz, 1H), 3.08-3.01 (m, 2H), 2.98 (dd, J = 14.0, 7.6 Hz, 1H), 2.78-2.58 (m, 9H), 2.37-2.20 (m, 2H), 2.11-2.01 (m, 3H), 1.73-1.54 (m, 4H), 0.50-0.39 (m, 4H); 691.50 [M + H]⁺ 1.31 1021

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(3-chloro-2- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.47 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.93 (s, 1H), 6.74 (s, 1H), 6.59 (s, 1H), 6.36-6.19 (m, 2H), 5.75- 5.69 (m, 1H), 4.97-4.87 (m, 1H), 4.45 (s, 1H), 4.12-4.04 (m, 2H), 3.98 (q, J = 8.0 Hz, 1H), 3.85-3.78 (m, 4H), 3.71-3.64 (m, 1H), 3.21-3.10(m, 2H), 3.06-2.94 (m, 3H), 2.81-2.69 (m, 2H), 2.66-2.57 (m, 1H), 2.57-2.49 (m, 1H), 2.31-2.20 (m, 1H), 2.09-1.82 (m, 5H), 1.78-1.66 (m, 2H); 664.45 [M + H]⁺ 1.24 1022

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(3-chloro-2-fluorobenzyl)- isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.47 (s, 1H), 8.34 (s, 1H), 7.30 (t, J = 7.1 Hz, 1H), 7.28-7.23 (m, 1H), 7.01 (t, J = 7.8 Hz, 1H), 6.86 (s, 1H), 6.75 (s, 1H), 6.60 (s, 1H), 6.37-6.18 (m, 2H), 5.72 (dd, J = 10.1, 1.3 HZ, 1H), 4.96-4.88 (m, 1H), 4.44 (s, 1H), 4.12-4.05 (m, 2H), 3.98 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.77 (s, 1H), 3.66 (d, J = 7.5 Hz, 1H), 3.20-3.11 (m, 2H), 3.06-2.94 (m, 3H), 2.81-2.70 (m, 2H), 2.63-2.54 (m, 1H), 2.53-2.47 (m, 1H), 2.31-2.21 (m, 1H), 2.10-2.01 (m, 2H), 1.98-1.89 (m, 2H), 1.86-1.80 (m, 1H), 1.73-1.66 (m, 2H); 664.45 [M + H]⁺ 1.23 1023

N-(2-(4-(4-cyclobutyl- piperazine-1-yl)piperidine- 1-yl)-5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazol- idine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.82 (s, 1H), 8.43 (s, 1H), 8.32 (d, J = 1.0 Hz, 1H), 7.34 (ddd, J = 12.8, 7.9, 1.6 Hz, 2H), 7.12 (t, J = 7.8 Hz, 1H), 6.86 (s, 1H), 6.73 (s, 1H), 6.58 (s, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (dd, J = 10.0, 1.6 Hz, 1H), 5.00 (qd, J = 7.4, 3.4 Hz, 1H), 4.00 (q, J = 8.1 Hz, 1H), 3.82 (s, 3H), 3.24 (dd, J = 14.2, 7.4 Hz, 1H), 3.11-3.00 (m, 3H), 2.83-2.54 (m, 8H), 2.44 (s, 2H), 2.38- 2.29 (m, 2H), 2.25 (dt, J = 12.0, 3.9 Hz, 2H), 2.05 (ddt, J = 15.8, 9.5, 3.2 Hz, 7H), 1.91 (t, J = 9.8 Hz, 3H), 1.68 (dtd, J = 27.2, 12.0, 11.0, 5.5 Hz, 5H),; 721.5 [M + H]⁺ 1.27 1024

N-(2-(4-(4-allylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((S)-3-(2,3- dichlorobenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxy- phenyl)acrylamide 707.3 [M + H]⁺ 1.40 1025

N-(5-((6-((S)-3-(3- chloro-2-methylbenzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-(4-cyclopropylpiper- azine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 10.67 (s, 1H), 8.27 (d, J = 6.4 Hz, 2H), 8.13 (s, 1H), 7.10- 7.00 (m, 2H), 6.67 (s, 1H), 6.48-6.30 (m, 2H), 5.98 (s, 1H), 5.77 (dd, J = 9.7, 1.8 Hz, 1H), 4.74 (tt, J = 9.2, 5.0 Hz, 1H), 4.00 (q, J = 7.6 Hz, 1H), 3.77 (s, 4H), 3.72 (s, 8H), 3.37 (dd, J = 13.8, 5.5 Hz, 1H), 3.24 (d, J = 11.9 Hz, 1H), 3.16 (d, J = 11.6 Hz, 2H) 2.76 (dt, J = 11.1,8.5 Hz, 3H), 2.53 (td, J = 7.1,3.5 Hz, 1H), 2.45 (s, 3H), 2.34 (dtd, J = 13.4, 7.9, 5.6 Hz, 1H), 2.20 (dt, J = 11.7, 6.2 Hz, 3H), 2.16- 2.01 (m, 3H), 1.17 (d, J = 4.0 Hz, 2H), 0.98- 0.78 (m, 4H),; 687.5 1.34 1026

N-(5-((6-((S)-3-(3-chloro-2- methylbenzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-cyclopropylpiper- azine-1-yl)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.65 (s, 1H), 8.46 (s, 1H), 8.24-8.22 (m, 1H), 7.23 (d, J = 1.4 Hz, 1H), 7.13 (dd, J = 7.8, 1.4, 1H), 7.05 (t, J = 7.8, 1H), 6.77 (s, 1H), 6.40-6.23 (m, 3H), 5.75 (dd, J = 9.6, 2.0 Hz, 1H), 4.84- 4.74 (m, 1H) 3.80 (s, 3H), 2.96 (s, 6H), 2.80 (dd, J = 14.0, 8.7 Hz, 2H), 2.47 (s, 3H), 2.22 (dtd, J = 12.4, 7.9, 4.6 Hz, 1H), 2.14-2.07 (m, 1H), 2.06 (s, 4H), 1.91 (d, J = 10.0 Hz, 1H), 1.26 (d, J = 2.6 Hz, 1H), 0.91-0.80 (m, 1H), 0.71 (s, 2H), 0.61 (d, J = 6.6 Hz, 2H),; 604.4 [M + H]⁺ 1.33 1027

N-(5-((6-((S)-3-(3- chloro-2-methylbenzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-((R)-4-cyclopropyl-3- methylpip- erazine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide 701.6 [M + H]⁺ 1.32 1028

N-(5-((6-((S)-3-(3- chloro-2-methylbenzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 2-(4-((S)-4-cyclopropyl-3- methylpip- erazine-1-yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.72 (s, 1H), 8.45 (s, 1H), 8.28 (d, J = 1.0 Hz, 1H), 7.22 (d, J = 1.3, Hz, 1H), 7.15 (dd, J = 7.7, 1.4 Hz, 1H), 7.04 (t, J = 7.7 Hz, 1H), 6.67 (s, 1H), 6.52- 6.47 (m, 1H), 6.42-6.26 (m, 2H), 5.73 (dd, J = 9.3, 2.2 Hz, 1H), 4.81 (tdd, J = 8.3, 6.1,4.1 Hz, 1H), 4.09 (td, J = 8.0, 4.5 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.57 (d, J = 10.6 Hz, 1H), 3.29 (dd, J = 14.0, 6.1 Hz, 1H), 3.12- 3.02 (m, 3H), 2.97 (s, 1H), 2.88 (d, J = 10.2 Hz, 1H), 2.84-2.62 (m, 4H), 2.47 (s, 3H), 2.30- 2.11 (m,4H), 2.11-2.06 (m, 2H), 1.33- 1.22 (m, 2H), 0.92-0.77 (m, 2H),; 701.6 [M + H]* 1.36 1029

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6-((S)- 3-(3-chloro-2-methylbenzyl)- isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.72 (s, 1H), 8.45 (s, 1H), 8.28 (d, J = 1.0 Hz, 1H), 7.22 (d, J = 1.3, 1H), 7.15 (dd, J = 7.7, 1.4 Hz, 1H), 7.04 (t,J = 7.7 Hz, 1H), 6.67 (s, 1H), 6.52-6.47 (m, 1H), 6.42- 6.26 (m, 2H), 5.73 (dd, J = 9.3, 2.2 Hz, 1H), 4.81 (tdd, J = 8.3, 6.1,4.1 Hz, 1H), 4.09 (td, J = 8.0, 4.5 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.80 (s, 3H), 3.57 (d, J = 10.6 Hz, 1H), 3.29 (dd, J = 14.0, 6.1 Hz, 1H), 3.12-3.02 (m, 3H), 2.97 (s, 1H), 2.88 (d, J = 10.2 Hz, 1H), 2.84-2.62 (m, 4H), 2.47 (s, 3H), 2.30-2.11 (m, 4H), 2.11-2.06 (m, 2H), 1.33- 1.22 (m, 2H), 0.92-0.77 (m, 2H),; 660.4 [M + H]⁺ 1.23 1030

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6-((S)- 3-(3-chloro-2-methylbenzyl)- isoxazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.74 (s, 1H), 8.48 (d, J = 1.0 Hz, 1H), 7.24 (dd, J = 7.9, 1.3 Hz, 1H), 7.16 (dd, J = 7.7, 1.4 Hz, 1H), 7.05 (t, J = 7.8 Hz, 1H), 6.72 (s, 1H), 6.53 (s, 1H), 6.34 (s, 1H), 6.32 (d, J = 2.1 Hz, 1H), 5.73 (dd, J = 6.9, 4.7 Hz, 1H), 4.87-4.77 (m, 1H), 4.11-4.04 (m, 2H), 3.83 (s, 3H), 3.75-3.71 (m, 1H), 3.39 (d, J = 10.4 Hz, 1H), 3.30 (dd, J = 14.0, 6.1 Hz, 1H), 3.06 (d, J = 11.8 Hz, 2H), 2.85-2.62 (m, 6H), 2.48 (s, 3H), 2.20 (dtd, J = 12.4, 8.1,4.6 Hz, 2H), 2.06 (s, 5H), 1.94 (d, J = 11.2 Hz, 5H), 1.34-1.22 (m, 2H),; 660.4[M + H]⁺ 1.25 1031

N-(5-((6-((S)-3-(3,5- difluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-2- ((2-(dimethylamino)ethyl)(methyl)- amino)-4-methoxyphenyl)acrylamide ; 568.40 [M + H]⁺ 1.24 1032

N-(2-(4-cyclopropylpip- erazine-1-yl)-5-((6-(S)-(3- (3,5-difluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.59 (s, 1H), 8.36 (s, 1H), 6.91-6.83 (m, 3H), 6.78 (s, 1H), 6.70-6.62 (m, 1H), 6.61 (s, 1H), 6.39-6.23 (m, 2H), 5.75 (dd, J = 9.8, 1.6 Hz, 1H), 4.88 (qd, J = 7.5, 3.9 Hz, 1H), 4.08 (td, J = 8.2, 4.4 Hz, 1H), 3.97 (q, J = 8.2 Hz, 1H), 3.80 (s, 3H), 3.18 (dd, J = 13.9, 6.7 Hz, 1H), 2.94-2.72 (m, 9H), 2.32-2.20 (m, 1H), 2.08-1.98 (m, 1H), 1.75-1.68 (m, 1H), 0.56- 0.49 (m, 2H), 0.49-0.43 (m, 2H); 592.45 [M + H]⁺ 1.22 1033

N-(2-(4-(4-cyclopropylpip- erazine-1-yl)piperidine-1- yl)-5-((6-((S)-3-(3,5- difluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.44 (s, 1H), 8.36 (s, 1H), 6.90-6.82 (m, 3H), 6.73 (s, 1H), 6.69-6.62 (m, 1H), 6.60 (s, 1H), 6.38-6.19 (m, 2H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.92-4.83 (m, 1H), 4.07(td, J = 8.2, 4.5 Hz, 1H), 3.97 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.17 (dd, J = 14.0, 6.7 Hz, 1H), 3.10-3.00 (m, 2H), 2.83-2.58 (m, 10H), 2.38-2.21 (m, 2H), 2.11-1.97 (m, 3H), 1.72- 1.62 (m, 4H), 0.51-0.38 (m, 4H); 675.53 [M + H]⁺ 1.23 1034

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6- ((S)-3-(3,5-difluorobenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.47 (s, 1H), 8.36 (s, 1H), 6.91-6.83 (m, 3H), 6.75 (s, 1H), 6.70-6.62 (m, 1H), 6.61 (s, 1H), 6.38-6.18 (m, 2H), 5.72 (dd, J = 10.0, 1.3 Hz, 1H), 4.88 (qd, J = 7.6, 3.9 Hz, 1H), 4.44 (s, 1H), 4.12-4.03 (m, 2H), 3.97 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.81-3.74 (m, 1H), 3.70-3.63 (m, 1H), 3.21-3.11 (m, 2H), 3.07-2.97 (m, 2H), 2.83-2.70 (m, 3H), 2.63-2.54 (m, 1H), 2.54-2.47 (m, 1H), 2.31-2.19 (m, H), 2.07-1.99 (m, 2H), 1.98-1.89 (m, 2H), 1.87-1.79 (m, 1H), 1.75-1.67 (m, 2H); 648.44 [M + H]⁺ 1.20 1035

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6- ((S)-3-(3,5-difluorobenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.84 (s, 1H), 8.47 (s, 1H), 8.36 (s, 1H), 6.91-6.84 (m, 3H), 6.75 (s, 1H), 6.69-6.62 (m, 1H), 6.60 (s, 1H), 6.37-6.19 (m, 2H), 5.72 (dd, J = 10.0, 1.2 Hz, 1H), 4.88 (qd, J = 7.6, 3.9 Hz, 1H), 4.45 (s, 1H), 4.13-4.04 (m, 2H), 3.97 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.82-3.74 (m, 1H), 3.71-3.63 (m, 1H), 3.22-3.12 (m, 2H), 3.07-2.98 (m, 2H), 2.83-2.70 (m, 3H), 2.64-2.55 (m, 1H), 2.55-2.48 (m, 1H), 2.30-2.20 (m, 1H), 2.09-1.99 (m, 2H), 1.99-1.89 (m, 2H), 1.88-1.80 (m, 1H), 1.77-1.68 (m, 2H); 648.44 [M + H]⁺ 1.19 1036

N-(5-((6-((S)-3-(2- chloro-3-fluorobenzyl)isoxazoli- dine-2-yl)pyrimidine-4-yl)amino)-2- (4-((R)-4-cyclopropyl-3-methylpiper- azine-1-yl)piperidine-1-yl)-4- methoxy-phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.27 (s, 1H), 8.14 (s, 1H), 7.32-7.19 (m, 2H), 7.15- 7.07 (m, 1H), 6.91 (s, 1H), 6.63-6.49 (m, 1H), 6.39-6.27 (m, 2H), 5.81 (dd, J = 1.5, 10.2 Hz, 1H), 6.39-6.27 (m, 2H), 5.81 ( dd, J = 1.5, 10.2 Hz, 1H), 4.17-4.11 (m, 1H), 3.97-3.82 (m, 4H), 3.30-3.25 (m, 1H), 3.24-3.13 (m, 5H), 3.11-3.02 (m, 1H), 2.86-2.60 (m, 6H), 2.44-2.37 (m, 1H), 2.33-2.23 (m, 1H), 2.17-2.10 (m, 3H), 1.94-1.79 (m, 2H), 1.79-1.67 (m, 1H), 1.30 (d, J = 6.3 Hz, 3H), 0.81-0.70 (m, 1H), 0.70-0.62 (m, 1H), 0.62-0.51 (m, 1H), 0.45-0.35 (m, 1H); 705.3 [M + H]⁺ 1.23 1037

N-(5-((6-((S)-3-(2-chloro-3- fluorobenzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)-2- (4-((S)-4-cyclopropyl- 3-methylpiperazine-1- yl)piperidine-1-yl)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.27 (s, 1H), 8.15 (s, 1H), 7.33-7.20 (m, 2H), 7.18- 7.06 (m, 1H), 6.91 (s, 1H), 6.63-6.48 (m, 1H), 6.41-6.25 (m, 2H), 5.84-5.76 (m, 1H), 4.17-4.10 (m, 1H), 3.94-3.84 (m, 4H), 3.30-3.25 (m, 1H), 3.25-3.15 (m, 5H), 3.10-3.03 (m, 1H), 2.85-2.64 (m, 6H), 2.47-2.38 (m, 1H), 2.33-2.24 (m, 1H), 2.17-2.08 (m, 3H), 1.93-1.81 (m, 2H), 1.77-1.69 (m, 1H), 1.30 (d, J = 6.2 Hz, 3H), 0.80-0.71 (m, 1H), 0.70-0.62 (m, 1H), 0.60-0.52 (m, 1H), 0.43-0.35 (m, 1H),; 705.3 [M + H]⁺ 1.24 1038

N-(2-(4-cyclopropylpiperazine- 1-yl)-5-((6-((S)-3-(3- fluoro-2-methylbenzyl)isoxazol- idine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.29 (s, 1H), 8.16 (s, 1H), 7.15-7.02 (m, 2H), 6.96- 6.81 (m, 2H), 6.60-6.49 (m, 1H), 6.40- 6.25 (m, 2H), 5.82 (dd, J = 1.5, 10.2 Hz, 1H), 4.15-4.07 (m, 1H), 3.93-3.85 (m, 4H), 3.24-3.16 (m, 1H), 3.01-2.90 (m, 8H), 2.88-2.81 (m, 1H), 2.32 (d, J = 2.2 Hz, 3H), 2.27-2.20 (m, 1H), 2.17-2.09 (m, 1H), 1.94-1.88 (m, 1H), 0.64-0.57 (m, 2H), 0.57-0.50 (m, 2H); 588.3 [M + H]⁺ 1.19 1039

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2- methylbenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.17 (s, 1H), 7.17-7.04 (m, 2H), 6.97- 6.83 (m, 2H), 6.63-6.49 (m, 1H), 6.41-6.25 (m, 2H), 5.81 (d, J = 10.2 Hz, 1H), 4.61-4.58 (m, 1H), 4.29-4.24 (m, 1H), 4.20-4.09 (m, 2H), 3.95-3.84 (m, 4H), 3.81-3.75 (m, 1H), 3.32-3,28 (m, 1H), 3.24-3.12 (m, 3H), 3.07- 2.95 (m, 2H), 2.90-2.78 (m, 3H), 2.32 (d, J = 2.2 Hz, 3H), 2.29-2.02 (m, 7H), 1.89-1.77 (m, 2H); 644.3 [M + H]⁺ 1.18 1040

N-(2-(4-((1s,4S)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2- methylbenzyl)iso- xazolidine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.17 (s, 1H), 7.16-7.04 (m, 2H), 6.97- 6.84 (m, 2H), 6.63-6.47 (m, 1H), 6.42-6.26 (m, 2H), 5.86-5.75 (m, 1H), 4.59 (s, 1H), 4.27 (s, 1H), 4.20-4.08 (m, 2H), 3.95-3.84 (m, 4H), 3.82-3.74 (m, 1H), 3.32 (d, J = 3.0 Hz, 1H), 3.24-3.11 (m, 3H), 3.08-2.96 (m, 2H), 2.89-2.78 (m, 3H), 2.32 (d, J = 2.2 Hz, 3H), 2.30-2.01 (m, 7H), 1.90-1.76 (m, 2H); 644.3 [M + H]⁺ 1.18 1041

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)- 5-((6-((S)-3-(2-chloro-3- fluorobenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)- 4-methoxy-phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.15 (s, 1H), 7.29-7.22 (m, 2H), 7.14- 7.08 (m, 1H), 6.92 (s, 1H), 6.55 (dd, J = 10.3, 17.0 Hz, 1H), 6.38-6.30 (m, 2H), 5.81 (d, J = 10.4 Hz, 1H), 4.60-4.58 (m, 1H), 4.28-4.24 (m, H1), 4.19-4.11 (m, 2H), 3.95-3.89 (m, 1H), 3.87 (s, 3H), 3.80-3.75 (m, 1H), 3.31- 3.30 (m, 1H), 3.22-3.14 (m, 3H), 3.10-2.97 (m, 3H), 2.89-2.80 (m, 2H), 2.32-2.24 (m, 1H), 2.21-2.04 (m, 6H), 1.87-1.79 (m, 2H),; 663.3 [M + H]⁺ 1.18 1042

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane-5- yl)piperidine-1-yl)- 5-((6-((S)-3-(2-chloro-3- fluorobenzyl)iso- xazolidine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.26 (s, 1H), 8.15 (s, 1H), 7.31-7.21 (m, 2H), 7.14- 7.07 (m, 1H), 6.92 (s, 1H), 6.55 (dd, J = 10.2, 17.0 Hz, 1H), 6.40-6.28 (m, 2H), 5.81 (d, J = 10.2 Hz, 1H), 4.60-4.58 (m, 1H), 4.27-4.25 (m, 1H), 4.19-4.11 (m, 2H), 3.96-3.89 (m, 1H), 3.87 (s, 3H), 3.80-3.75 (m, 1H), 3.31- 3.29 (m, 1H), 3.22-3.14 (m, 3H), 3.10-2.97 (m, 3H), 2.89-2.81 (m, 2H), 2.33-2.24 (m, 1H), 2.23-2.01 (m, 6H), 1.88-1.76 (m, 2H); 663.3 [M + H]⁺ 1.18 1043

N-(2-(4-cyclopropylpiperazine- 1-yl)-5-((6-((S)-3-(3-(dimethyl- amino)benzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.91 (s, 1H), 8.59 (s, 1H), 8.40 (d, J = 1.0 Hz, 1H), 7.17 (t, J = 7.8 Hz, 1H), 6.88 (s, 1H), 6.78 (s, 1H), 6.75-6.65 (m, 2H), 6.65-6.57 (m, 2H), 6.36 (dd, J = 17.0, 1.7 Hz, 1H), 6.27 (dd, J = 17.0, 9.8 Hz, 1H), 5.74 (dd, J = 9.8, 1.7 Hz, 1H), 4.96- 4.85 (m, 1H), 4.07 (td, J = 8.0, 5.0 Hz, 1H), 3.98 (q, J = 8.0 Hz, 1H), 3.80 (s, 3H), 3.27 (dd, J = 13.7, 5.6 Hz, 1H), 2.95 (s, 6H), 2.89-2.85 (m, 4H), 2.85-2.75 (m, 4H), 2.75-2.67 (m, 1H), 2.22-2.03 (m, 2H), 1.77-1.67 (m, 1H), 0.57-0.42 (m, 4H),; 599.5 [M + H]⁺ 1.12 1044

N-(2-(4-(4-cyclopropylpiperazine- 1-yl)piperidine- 1-yl)-5-((6-((S)-3-(3-(dimethyl- amino)benzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- 4-methoxy-phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.46-8.37 (m, 2H), 7.17 (t, J = 7.8 Hz, 1H), 6.85 (s, 1H), 6.76-6.57 (m, 5H), 6.34 (dd, J = 17.0, 1.6 Hz, 1H), 6.23 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (dd, J = 10.0, 1.6 Hz, 1H), 4.91 (ddt, J = 13.4, 9.6, 5.2 Hz, 1H), 4.07 (td, J = 8.0, 5.0 Hz, 1H), 3.98 (q, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.26 (dd, J = 13.7, 5.6 Hz, 1H), 3.05 (d, J = 11.6 Hz, 2H), 2.95 (s, 6H), 2.78-2.68 (m, 6H), 2.68-2.53 (m, 4H), 2.37-2.27 (m, 1H), 2.22- 2.03 (m, 4H), 1.71-1.61 (m, 3H), 0.51-0.38 (m, 4H),; 682.5 [M + H]⁺ 1.14 1045

N-(2-(4-((S)-4-cyclopropy- 3-methylpiper- azine-1-yl)piperidine- 1-yl)-5-((6-((S)-3-(3-(dimethyl- amino)benzyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.43 (s, 1H), 8.39 (d, J = 1.0 Hz, 1H), 7.17 (t, J = 7.8 Hz, 1H), 6.87 (s, 1H), 6.75-6.71 (m, 2H), 6.68 (d, J = 7.4 Hz, 1H), 6.65-6.57 (m, 2H), 6.35 (dd, J = 17.0, 1.6 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.73 (dd, J = 10.0, 1.6 Hz, 1H), 4.96-4.85 (m, 1H), 4.07 (td, J = 8.0, 5.0 Hz, 1H), 3.98 (q, J = 7.9 Hz, 1H), 3.83 (s, 3H), 3.26 (dd, J = 13.6, 5.6 Hz, 1H), 3.08- 2.95 (m, 4H), 2.94 (s, 6H), 2.87 (d, J = 10.8 Hz, 1H), 2.77-2.65 (m, 3H), 2.59-2.42 (m, 2H), 2.30 (tt, J = 11.5, 4.7 Hz, 2H), 2.22-2.03 (m, 4H), 2.00 (t, J = 10.3 Hz, 1H), 1.66 (qd, J = 11.8, 5.9 Hz, 2H), 1.58-1.48 (m, 1H), 1.21 (d, J = 6.4 Hz, 3H), 0.70-0.55 (m, 2H), 0.49- 0.38 (m, 1H), 0.37-0.26 (m, 1H),; 696.5 [M + H]⁺ 1.17 1046

N-(2-(4-((R)-4-cyclopropyl-3- methylpiper- azine-1-yl)piperidine-1-yl)-5- ((6-((S)-3-(3-(dimethyl- amino)benzyl)isoxazol idine-2-yl)pyrimidine-4- yl)amino)-4-methoxy- phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.86 (s, 1H), 8.44 (s, 1H), 8.40-8.37 (m, 1H), 7.16 (t, J = 7.8 Hz, 1H), 6.90 (s, 1H), 6.75-6.71 (m, 2H), 6.68 (d, J = 7.4 Hz, 1H), 6.62 (d, J = 2.6 Hz, 1H), 6.59 (d, J = 2.6 Hz, 1H), 6.35 (dd, J = 16.9, 1.6 Hz, 1H), 6.24 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (dd, J = 9.9, 1.6 Hz, 1H), 4.90 (tt, J = 9.1, 5.0 Hz, 1H), 4.07 (td, J = 8.0, 5.0 Hz, 1H), 3.98 (q, J = 7.9 Hz, 1H), 3.82 (s, 3H), 3.26 (dd, J = 13.7, 5.6 Hz, 1H), 3.08-2.96 (m, 4H), 2.94 (s, 6H), 2.87 (d, J = 10.9 Hz, 1H), 2.78-2.65 (m, 3H), 2.57-2.42 (m, 2H), 2.35-2.23 (m, 2H), 2.21-2.03 (m, 4H), 2.00 (t, J = 10.4 Hz, 1H), 1.73-1.58 (m, 2H), 1.57-1.48 (m, 1H), 1.22- 1.19 (m, 3H), 0.70-0.54 (m, 2H), 0.49-0.38 (m, 1H), 0.37-0.26 (m, 1H),; 696.5 [M + H]⁺ 1.17 1047

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(3-(dimethylamino)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.47 (s, 1H), 8.40 (d, J = 1.0 Hz, 1H), 7.17 (t, J = 7.8 Hz, 1H), 6.88 (s, 1H), 6.77-6.65 (m, 3H), 6.65-6.57 (m, 2H), 6.34 (dd, J = 16.9, 1.5 Hz, 1H), 6.22 (dd, J = 16.9, 10.0 Hz, 1H), 5.72 (dd, J = 10.0, 1.5 Hz, 1H), 4.96-4.85 (m, 1H), 4.46-4.41 (m, 1H), 4.07 (td, J = 7.9, 5.0 Hz, 2H), 3.98 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.79-3.73 (m, 1H), 3.66 (dd, J = 7.9, 1.6 Hz, 1H), 3.26 (dd, J = 13.6, 5.6 Hz, 1H), 3.13 (dd, J = 10.0, 1.8 Hz, 1H), 3.10-2.97 (m, 2H), 2.95 (s, 6H), 2.82-2.73 (m, 2H), 2.72-2.66 (m, 1H), 2.63-2.46 (m, 2H), 2.22-2.00 (m, 3H), 1.99-1.89 (m, 2H), 1.84-1.80 (m, 1H), 1.74-1.59 (m, 2H),; 655.5 [M + H]⁺ 1.13 1048

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(3-(dimethylamino)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.87 (s, 1H), 8.47 (s, 1H), 8.40 (d, J = 1.0 Hz, 1H), 7.17 (t, J = 7.8 Hz, 1H), 6.89 (s, 1H), 6.77-6.70 (m, 2H), 6.68 (d, J = 7.4 Hz, 1H), 6.65-6.57 (m, 2H), 6.34 (dd, J = 16.9, 1.6 Hz, 1H), 6.22 (dd, J = 17.0, 10.0 Hz, 1H), 5.72 (dd, J = 10.0, 1.5 Hz, 1H), 4.96-4.85 (m, 1H), 4.44 (t, J = 2.0 Hz, 1H), 4.12-4.04 (m, 2H), 3.98 (q, J = 8.0 Hz, 1H), 3.84 (s, 3H), 3.76 (s, 1H), 3.66 (dd, J = 7.9, 1.6 Hz, 1H), 3.26 (dd, J = 13.7, 5.6 Hz, 1H), 3.13 (dd, J = 9.9, 1.8 Hz, 1H), 3.02 (dd, J = 12.0, 4.5 Hz, 2H), 2.94 (s, 6H), 2.82-2.66 (m, 3H), 2.62-2.54 (m, 1H), 2.50 (d, J = 9.9 Hz, 1H), 2.22-2.00 (m, 3H), 1.97-1.87 (m, 2H), 1.86-1.78 (m, 1H), 1.72-1.60 (m, 2H),; 655.5 [M + H]⁺ 1.11 1049

N-(2-(4-cyclopropyl- piperazine-1-yl)-4- methoxy-5-((6-((S)-3-(4- (trifluoromethyl)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)-phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.87 (s, 1H), 8.59 (s, 1H), 8.37 (d, J = 5.7 Hz, 1H), 7.54 (d, J = 8.1 Hz, 2H), 7.44 (d, J = 8.0 Hz, 2H), 6.88 (s, 1H), 6.78 (s, 1H), 6.59 (s, 1H), 6.39-6.23 (m, 2H), 5.75 (dd, J = 9.8, 1.6 Hz, 1H), 4.92 (qd, J = 7.5, 3.9 Hz, 1H), 4.06 (td, J = 8.1, 4.5 Hz, 1H), 3.97 (q, J = 8.2 Hz, 1H), 3.80 (s, 3H), 3.25 (dd, J = 13.8, 6.6 Hz, 1H), 2.93-2.71 (m, 9H), 2.29-2.19 (m, 1H), 2.09-1.99 (m, 1H), 1.75-1.69 (m, 1H), 0.55-0.42 (m, 4H); 624.48 [M + H]⁺ 1.29 1050

N-(2-(4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-4-methoxy-5-((6-((S)-3-(4- (trifluoromethyl)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)-phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.82 (s, 1H), 8.44 (s, 1H), 8.35 (s, 1H), 7.54 (d, J = 8.1 Hz, 2H), 7.44 (d, J = 8.0 Hz, 2H), 6.86 (s, 1H), 6.73 (s, 1H), 6.59 (s, 1H), 6.38-6.19 (m, 2H), 5.73 (dd, J = 10.0, 1.3 Hz, 1H), 4.95-4.86 (m, 1H), 4.06 (td, J = 8.1, 4.5 Hz, 1H), 3.96 (q, J = 8.1 Hz, 1H), 3.83 (s, 3H), 3.24 (dd, J = 13.8, 6.6 Hz, 1H), 3.08-3.01 (m, 2H), 2.89 (dd, J = 13.8, 7.7 Hz, 1H), 2.79-2.58 (m, 9H), 2.37-2.29 (m, 1H), 2.27-2.21 (m, 1H), 2.11-1.99 (m, 3H), 1.72-1.64 (m, 4H), 0.51-0.39 (m, 4H); 707.52 [M + H]⁺ 1.30 1051

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-4- methoxy-5-((6-((S)-3-(4- (trifluoromethyl)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.47 (s, 1H), 8.35 (s, 1H), 7.54 (d, J = 7.9 Hz, 2H), 7.44 (d, J = 7.9 Hz, 2H), 6.89 (d, J = 9.4 Hz, 1H), 6.75 (s, 1H), 6.59 (s, 1H), 6.38-6.19 (m, 2H), 5.76-5.70 (m, 1H), 4.96-4.85 (m, 1H), 4.45 (s, 1H), 4.12-4.02 (m, 2H), 3.97 (q, J = 8.0 Hz, 1H), 3.86-3.76 (m, 4H), 3.70-3.64 (m, 1H), 3.24 (dd, J = 13.8, 6.6 Hz, 1H), 3.20-3.12 (m, 1H), 3.07-2.99 (m, 2H), 2.89 (dd, J = 13.8, 7.7 Hz, 1H), 2.80-2.69 (m, 2H), 2.65- 2.49 (m, 2H), 2.30-2.19 (m, 1H), 2.08- 2.00 (m, 2H), 2.00-1.90 (m, 2H), 1.88-1.81 (m, 1H), 1.76-1.66 (m, 2H); 680.47 [M + H]⁺ 1.25 1052

N-(2-(4-((1S,4S)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-4- methoxy-5-((6-((S)-3-(4- (trifluoromethyl)benzyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, CDCl₃) δ 8.83 (s, 1H), 8.47 (s, 1H), 8.35 (s, 1H), 7.54 (d, J = 8.0 Hz, 2H), 7.44 (d, J = 8.0 Hz, 2H), 6.88 (s, 1H), 6.75 (s, 1H), 6.59 (s, 1H), 6.37-6.19 (m, 2H), 5.75-5.69 (m, 1H), 4.96-4.86 (m, 1H), 4.45 (s, 1H), 4.12-4.03 (m, 2H), 3.97 (q, J = 8.1 Hz, 1H), 3.84 (s, 3H), 3.78 (s, 1H), 3.70-3.63 (m, 1H), 3.24 (dd, J = 13.8, 6.6 Hz, 1H), 3.19-3.11 (m, 1H), 3.06- 2.98 (m, 2H), 2.89 (dd, J = 13.8, 7.7 Hz, 1H), 2.81-2.70 (m, 2H), 2.63-2.49 (m, 2H), 2.29-2.20 (m, 1H), 2.08- 1.99 (m, 2H), 1.99-1.90 (m, 2H), 1.85- 1.80 (m, 1H), 1.73-1.66 (m, 2H); 680.47 [M + H]⁺ 1.25 1053

N-(5-((6-((S)-3-(3-chloro-2- methoxybenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-2- (4-cyclopropylpiperazine-1- yl)-4-methoxyphenyl)acrylamide H NMR (400 MHz, Methanol-d₄) δ 8.18 (s, 1H), 8.05 (s, 1H), 7.19 (dd, J = 7.7, 20.0 Hz, 2H), 6.93 (t, J = 7.8 Hz, 1H), 6.81 (s, 1H), 6.42 (dd, J = 10.2, 17.0 Hz, 1H), 6.24 (d, J = 15.2 Hz, 2H), 5.70 (d, J = 10.3 Hz, 1H), 4.02-3.96 (m, 1H), 3.83-3.73 (m, 7H), 3.07-2.98 (m, 1H), 2.87-276 (m, 9H), 2.15- 2.06 (m, 1H), 2.06-1.97 (m, 1H), 1.80- 1.74 (m, 1H), 0.82-0.77 (m, 1H), 0.51-0.45 (m, 2H), 0.45-0.39 (m, 2H); 620.3 [M + H]⁺ 1.2 1054

N-(5-((6-((S)-3-(3-chloro-2- methoxybenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-2- (4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-4-methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.15 (s, 1H), 8.05 (s, 1H), 7.25-7.14 (m, 2H), 6.93 (t, J = 7.8 Hz, 1H), 6.80 (s, 1H), 6.43 (dd, J = 10.2, 16.9 Hz, 1H), 6.30-6.18 (m, 2H), 5.69 (d, J = 9.9 Hz, 1H), 4.01-3.96 (m, 1H), 3.81-3.75 (m, 7H), 3.09-3.01 (m, 3H), 2.93- 2.85 (m, 3H), 2.82-2.62 (m, 8H), 2.13- 2.07 (m, 1H), 2.06-1.96 (m, 3H), 1.95-1.92 (m, 1H), 1.79-1.67 (m, 3H), 1.54-1.47 (m, 1H), 0.49-0.40 (m, 2H), 0.40-0.31 (m, 2H); 703.3 [M + H]⁺ 1.21 1055

N-(2-(4-((1R,4R)-2-oxa-5- azabicyclo[2.2.1]heptane- 5-yl)piperidine-1-yl)-5-((6- ((S)-3-(3-chloro-2- methoxybenzyl)isoxazolidine- 2-yl)pyrimidine-4-yl)amino)-4- methoxyphenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.14 (s, 1H), 8.05 (s, 1H), 7.25-7.19 (m, 1H), 7.19-7.14 (m, 1H), 6.93 (t, J = 7.8 Hz, 1H), 6.81 (s, 1H), 6.42 (dd, J = 10.3, 17.0 Hz, 1H), 6.28-6.20 (m, 2H), 5.69 (d, J = 10.2 Hz, 1H), 4.18-4.13 (m, 1H), 4.07-4.03 (m, 1H), 4.02- 3.96 (m, 1H), 3.81-3.74 (m, 7H), 3.68- 3.65 (m, 1H), 3.08-3.01 (m, 3H), 2.96-2.86 (m, 2H), 2.83-2.71 (m, 3H), 2.13-2.06 (m, 2H), 2.01-1.94 (m, 4H), 1.73-1.67 (m, 2H), 0.82- 0.74 (m, 3H),; 676.3 [M + H]⁺ 1.18 1056

N-(2-(4-((R)-4-cyclopropyl- 3-methylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((S)-3- (pyridine-3-ylmethyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.72 (s, 1H), 8.52 (d, J = 2.3 Hz, 2H), 8.46 (dd, J = 4.9, 1.6 Hz, 2H), 8.40 (s, 2H), 8.27 (s, 1H), 7.73 (dt, J = 7.8, 2.0 Hz, 2H), 7.25-7.22 (m, 1H), 6.72 (s, 2H), 6.53 (s, 1H), 6.33- 6.25 (m, 3H), 5.73 (dd, J = 9.5, 2.1 Hz, 2H), 4.87 (qd, J = 7.2, 3.8 Hz, 2H), 3.81 (s, 4H), 3.43 (s, 1H), 3.17-3.10 (m,4H), 3.10- 2.99 (m, 7H), 2.86 (dd, J = 14.1, 7.1 Hz, 2H), 2.72 (q, J = 11.0, 10.5 Hz, 6H), 2.27 (dtd, J = 12.4, 8.2, 4.3 Hz, 2H), 2.09 (d, J = 12.6 Hz, 4H), 1.77 (qd, J = 12.2, 3.9 Hz, 4H), 1.60 (tt, J = 6.8, 3.9 Hz, 2H), 0.65 (dp, J = 15.3, 5.5, 4.8 Hz, 4H), 0.45 (td, J = 10.6, 9.0, 5.9 Hz, 2H), 0.37 (p, J = 4.8 Hz, 2H),; 654.6 [M + H]⁺ 0.87 1057

N-(2-(4-((S)-4-cyclopropyl- 3-methylpiperazine-1- yl)piperidine-1-yl)-4- methoxy-5-((6-((S)-3- (pyridine-3-ylmethyl)iso- xazolidine-2-yl)pyrimidine- 4-yl)amino)-phenyl)acrylamide ¹H NMR (400 MHz, Chloroform-d) δ 8.75 (s, 1H), 8.53 (d, J = 2.2 Hz, 1H), 8.46 (dd, J = 4.9, 1.6 Hz, 2H), 8.41 (s, 1H), 8.28 (d, J = 0.9 Hz, 1H), 7.72 (dt, J = 7.9, 1.9 Hz, 1H), 7.25-7.21 (m, 1H), 6.72 (s, 1H), 6.55 (s, 1H), 6.37-6.20 (m, 3H), 5.73 (dd, J = 9.7, 1.9 Hz, 1H), 4.87 (dt, J = 11.2, 5.5 Hz, 2H), 3.82 (s, 4H), 3.14 (dd, J = 14.1,6.7 Hz, 3H), 3.10-3.02 (m, 5H), 2.86 (dd, J = 14.0, 7.3 Hz, 2H), 2.78-2.63 (m, 5H), 2.63- 2.50 (m, 3H), 2.45 (dd, J = 12.5, 9.6 Hz, 2H), 2.27 (dtd, J = 12.4, 8.3, 4.4 Hz, 2H), 2.19-2.06 (m, 5H), 1.75 (q, J = 11.9 Hz, 3H), 1.60 (dd, J = 6.9, 3.4 Hz, 2H), 1.23 (d, J = 6.3 Hz, 4H), 0.71-0.59 (m, 3H), 0.46 (p, J = 6.1 Hz, 1H), 0.36 (d, J = 8.2 Hz, 1H),; 654.6 [M + H]⁺ 0.92 1058

N-(2-(4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-4-methoxy-5- ((6-((R)-3-(pyridine-2- ylmethyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.51- 8.42 (m, 1H), 8.26 (s, 1H), 8.14 (s, 1H), 7.83-7.71 (m, 1H), 7.49 (d, J = 7.9 Hz, 1H), 7.29 (dd, J = 5.1,7.5 Hz, 1H), 6.91 (s, 1H), 6.56 (dd, J = 10.2, 17.0 Hz, 1H), 6.36 (d, J = 18.2 Hz, 2H), 5.81 (d, J = 10.2 Hz, 1H), 4.09 (dd, J = 4.7, 8.2 Hz, 1H), 3.94- 3.84 (m, 4H), 3.32-3.30 (m, 1H), 3.29- 3.23 (m, 1H), 3.23-3.14 (m, 2H), 3.06- 2.96 (m, 4H), 2.92-2.76 (m, 7H), 2.32- 2.26 (m, 1H), 2.21-2.11 (m, 3H), 1.92- 1.77 (m, 3H), 0.94-0.88 (m, 1H), 0.60- 0.53 (m, 2H), 0.52-0.45 (m, 2H); 640.4 [M + H]⁺ 0.85 1059

N-(2-(4-(4-cyclopropyl- piperazine-1-yl)piperidine- 1-yl)-4-methoxy-5- ((6-((S)-3-(pyridine-2- ylmethyl)isoxazolidine-2- yl)pyrimidine-4-yl)amino)- phenyl)acrylamide ¹H NMR (400 MHz, Methanol-d₄) δ 8.49- 8.42 (m, 1H), 8.26 (s, 1H), 8.14 (s, 1H), 7.79-7.74 (m, 1H), 7.49 (d, J = 7.9 Hz, 1H), 7.31-7.27 (m, 1H), 6.91 (s, 1H), 6.55 (dd, J = 10.2, 17.0 Hz, 1H), 6.40-6.30 (m, 2H), 5.81 (d, J = 10.3 Hz, 1H), 4.12-4.07 (m, 1H), 3.92-3.85 (m, 4H), 3.28-3.24 (m, 1H), 3.22-3.17 (m, 2H), 3.06-2.98 (m, 4H), 2.93-2.75 (m, 8H), 2.33-2.25 (m, 1H), 2.21-2.12 (m, 3H), 1.91-1.80 (m, 3H), 0.93-0.89 (m, 1H), 0.61-0.55 (m, 2H), 0.53-0.45 (m, 2H); 640.4 [M + H]⁺ 0.86

<Experimental Example 1> Evaluation of Ba/F3 and Lung Cancer Cell Proliferation Suppression Activity

The following experiment was carried out to evaluate the suppression activity of the compounds according to the present invention against proliferation of Ba/F3 and lung cancer cells which express EGFR mutations.

Of the cancer cell lines expressing the EGFR gene, A549 was cultured after adding 10% FBS (HyClone) to DMEM (Invitrogen), and RPMI-1640 (Invitrogen) with 10% FBS was used for the other cancer cells. For the Ba/F3 cells, RPMI-1640 with 10% FBS and 5 ng/ml IL-3 (R&D Systems) was used. The transduced Ba/F3 cells were cultured by adding 1 ug/ml puromycin (Invitrogen) to the same medium.

24 hours before treatment with the compounds, 3000 to 5000 cells were distributed into each well of a white clear bottom 96 well plate (Corning). The compounds were diluted in dimethylsulfoxide (dilution ratio 3:1; 12 concentrations total) and injected 0.5 ul each for a final concentration of 0.3 nM to 50 um. As for measurement of live cells, 72 hours after treatment with the compounds, a CellTiter-Glo luminescent cell-viability reagent (Promega) was used to store the cells at room temperature for 10 minutes, followed by measurement of luminescence using a reader (SynergyNeo, Biotek). Each test was repeated three times.

The result was calculated as a cell growth ratio (%) compared to a control. The program GraphPad Prism version 5.0 was used to draw the graphs and calculate the GI₅₀ values.

Table 2 below shows the results of proliferation suppression for Ba/F3 cells which express EGFR (HER2) mutations.

TABLE 2 Ba/F3 cell (GI₅₀ (μM)) EGFR EGFR EGFR EGFR EGFR EGFR EGFR HER2 Example L858R/ Del19/ EGFR Exon20 Exon20 Exon20 Exon20 Exon20 Exon20 Compound T790M T790M L858R ins NPH ins SVD ins FQEA ins H ins ASV ins YVMA naive 1 B B A — — — — — — D 2 C C B — — — — — — D 3 C B — B B A C B B D 4 A A A A A A A A A D 5 B B A — — — — — — D 6 A A A A A A A A A D 7 B A — — — — — — — D 8 B B — — — — — — — C 9 A A A A A A A A A D 10 A A A A A A A A A D 12 A A A A A A A A A D 13 A A A A A A A A A D 15 A A A A A A A A A D 26 A — — A A — — — A D 28 A A A A A A A A A C 29 A A A A A A A A A D 30 A A A A A A — A A D 57 A A A A A A — A A D 236 A A A A A A — A A C 237 A — — A — — — A — D 238 A A A A A A — A A C 239 A A A A A A — A A D 240 A — — A — — — A — D 241 A A A A A A — A A C 242 A B A A A A — A A C 249 A — — A — — — — — D 250 A — — A — — — — — D 251 A — — A — — — — — D 252 A — — A — — — — — C 253 A — — A — — — — — C A: GI₅₀ < 50 nM; B; 50 nM ≤ GI₅₀ < 500 nM; C: 500 nM ≤ GI₅₀ < 5000 nM; D: 5000 nM ≤ GI₅₀

Additionally, Table 3 below shows the activity of the respective example compounds against the Ba/F3 cell line wherein NPH has been inserted (ins) at Exon20 of EGFR.

TABLE 3 Example Ba/F3 (NPH) Compound Activity 1 2 3 B 4 A 5 6 A 7 8 9 A 10 A 11 A 12 A 13 A 14 15 A 16 17 18 A 19 20 21 22 23 24 A 25 B 26 A 27 A 28 A 29 A 30 A 31 A 32 33 A 34 35 B 36 A 37 38 A 39 A 40 B 41 B 42 B 43 B 44 B 45 B 46 C 47 B 48 B 49 C 50 B 51 C 52 A 53 A 54 A 55 A 56 A 57 A 58 A 59 A 60 A 61 A 62 A 63 A 64 A 65 A 66 A 67 B 68 A 69 70 — 71 A 72 — 73 A 74 B 75 A 76 A 77 A 78 A 79 A 80 A 81 B 82 A 83 A 84 B 85 A 86 A 87 A 88 A 89 A 90 A 91 A 92 A 93 A 94 A 95 C 96 A 97 A 98 A 99 A 100 A 101 A 102 A 103 A 104 105 A 106 A 107 A 108 A 109 A 110 A 111 A 112 A 113 A 114 A 115 A 116 C 117 A 118 C 119 A 120 C 121 A 122 A 123 A 124 A 125 A 126 A 127 A 128 A 129 C 130 A 131 A 132 B 133 B 134 A 135 A 136 B 137 B 138 A 139 A 140 A 141 A 142 A 143 A 144 A 145 A 146 B 147 A 148 A 149 A 150 A 151 B 152 A 153 A 154 A 155 A 156 A 157 A 158 A 159 A 160 A 161 A 162 A 163 A 164 A 165 A 166 A 167 A 168 A 169 A 170 A 171 A 172 A 173 A 174 A 175 A 176 A 177 A 178 A 179 A 180 A 181 A 182 A 183 A 184 B 185 A 186 A 187 A 188 A 189 A 190 B 191 A 192 A 193 A 194 A 195 A 196 A 197 A 198 A 199 A 200 B 201 A 202 A 203 A 204 A 205 A 206 B 207 A 208 A 209 A 210 A 211 A 212 A 213 A 214 A 215 C 216 A 217 218 B 219 B 220 B 221 B 222 B 223 B 224 C 225 B 226 C 227 B 228 A 229 B 230 B 231 B 232 B 233 C 234 C 235 B 236 A 237 A 238 A 239 A 240 A 241 A 242 A 243 A 244 A 245 A 246 A 247 A 248 A 249 A 250 A 251 A 252 A 253 A 254 A 255 A 256 A 257 A 258 A 259 A 260 A 261 C 262 A 263 A 264 A 265 A 266 A 267 A 268 A 269 C 270 B 271 B 272 B 273 B 274 — 275 — 276 277 A 278 A 279 A 280 281 282 283 A 284 A 285 A 286 A 287 288 289 290 291 B 292 293 294 B 295 C 296 297 A 298 A 299 A 300 A 301 A 302 B 303 A 304 A 305 A 306 B 307 C 308 C 309 C 310 C 311 C 312 C 313 C 314 C 315 C 316 A 317 A 318 A 319 B 320 A 321 B 322 A 323 A 324 A 325 A 326 A 327 B 328 A 329 A 330 A 331 A 332 A 333 A 334 A 335 A 336 A 337 B 338 B 339 A 340 A 341 A 342 A 343 A 344 A 345 A 346 A 347 A 348 A 349 A 350 A 351 A 352 A 353 A 354 A 355 A 356 A 357 A 358 A 359 A 360 A 361 A 362 A 363 A 364 A 365 B 366 367 368 369 C 370 A 371 A 372 A 373 A 374 A 375 A 376 A 377 B 378 A 379 A 380 A 381 A 382 A 383 A 384 A 385 A 386 B 387 A 388 A 389 A 390 B 391 B 392 A 393 B 394 A 395 B 396 B 397 A 398 A 399 B 400 A 401 A 402 A 403 A 404 B 405 B 406 A 407 B 408 A 409 A 410 B 411 A 412 A 413 A 414 A 415 A 416 A 417 A 418 A 419 A 420 A 421 A 422 A 423 A 424 A 425 A 426 A 427 A 428 A 429 A 430 A 431 A 432 A 433 A 434 A 435 B 436 B 437 B 438 A 439 A 440 A 441 B 442 A 443 A 444 B 445 A 446 A 447 A 448 A 449 A 450 A 451 A 452 A 453 A 454 A 455 A 456 A 457 A 458 A 459 A 460 A 461 A 462 A 463 B 464 A 465 A 466 B 467 A 468 A 469 A 470 A 471 A 472 A 473 A 474 A 475 A 476 A 477 A 478 A 479 A 480 A 481 A 482 A 483 A 484 B 485 A 486 A 487 A 488 A 489 A 490 B 491 B 492 B 493 A 494 A 495 C 496 B 497 A 498 A 499 A 500 A 501 A 502 A 503 A 504 A 505 A 506 A 507 B 508 A 509 B 510 B 511 A 512 A 513 B 514 B 515 B 516 A 517 A 518 A 519 A 520 A 521 A 522 B 523 A 524 A 525 A 526 A 527 A 528 A 529 A 530 A 531 A 532 A 533 A 534 A 535 A 536 A 537 A 538 A 539 A 540 A 541 A 542 B 543 A 544 A 545 A 546 A 547 A 548 A 549 A 550 B 551 A 552 A 553 A 554 B 555 B 556 B 557 B 558 A 559 A 560 A 561 A 562 B 563 A 564 A 565 A 566 B 567 A 568 A 569 A 570 A 571 A 572 A 573 A 574 A 575 A 576 A 577 A 578 B 579 C 580 A 581 A 582 A 583 A 584 A 585 A 586 A 587 B 588 B 589 A 590 A 591 A 592 A 593 A 594 A 595 A 596 A 597 A 598 A 599 A 600 A 601 A 602 A 603 A 604 A 605 A 606 A 607 A 608 A 609 A 610 B 611 B 612 A 613 B 614 B 615 A 616 A 617 A 618 A 619 A 620 A 621 A 622 C 623 C 624 C 625 A 626 A 627 A 628 A 629 B 630 B 631 B 632 A 633 B 634 A 635 A 636 A 637 A 638 A 639 A 640 A 641 A 642 A 643 A 644 A 645 A 646 A 647 A 648 A 649 A 650 A 651 A 652 B 653 A 654 B 655 B 656 B 657 A 658 B 659 B 660 C 661 A 662 B 663 B 664 C 665 B 666 B 667 B 668 B 669 A 670 A 671 A 672 A 673 A 674 A 675 A 676 A 677 A 678 A 679 B 680 A 681 A 682 A 683 A 684 A 685 A 686 B 687 A 688 A 689 B 690 A 691 B 692 A 693 A 694 695 B 696 697 698 699 700 A 701 A 702 A 703 704 705 706 A 707 A 708 A 709 A 710 711 712 A 713 A 714 A 715 A 716 A 717 A 718 A 719 A 720 A 721 A 722 B 723 A 724 A 725 A 726 A 727 A 728 A 729 A 730 B 731 B 732 A 733 A 734 B 735 A 736 A 737 A 738 A 739 A 740 B 741 A 742 A 743 A 744 A 745 A 746 A 747 A 748 A 749 A 750 A 751 A 752 A 753 A 754 B 755 A 756 A 757 A 758 B 759 B 760 A 761 A 762 A 763 A 764 A 765 A 766 A 767 A 768 A 769 A 770 A 771 B 772 B 773 B 774 B 775 A 776 A 777 B 778 B 779 A 780 B 781 B 782 A 783 A 784 A 785 A 786 A 787 A 788 A 789 A 790 A 791 B 792 A 793 A 794 B 795 B 796 A 797 A 798 A 799 A 800 A 801 A 802 A 803 A 804 A 805 A 806 A 807 A 808 B 809 A 810 A 811 A 812 A 813 A 814 A 815 A 816 A 817 A 818 A 819 A 820 A 821 A 822 A 823 A 824 A 825 A 826 A 827 A 828 A 829 A 830 A 831 A 832 A 833 A 834 A 835 A 836 A 837 A 838 A 839 A 840 A 841 A 842 A 843 A 844 A 845 A 846 A 847 A 848 A 849 A 850 A 851 A 852 A 853 B 854 A 855 A 856 A 857 A 858 A 859 A 860 A 861 B 862 A 863 A 864 A 865 B 866 A 867 A 868 A 869 A 870 A 871 A 872 A 873 A 874 A 875 A 876 A 877 A 878 A 879 A 880 A 881 A 882 A 883 A 884 A 885 A 886 A 887 A 888 A 889 A 890 A 891 A 892 A 893 A 894 A 895 C 896 C 897 C 898 C 899 C 900 A 901 A 902 A 903 A 904 A 905 A 906 A 907 A 908 A 909 A 910 A 911 A 912 A 913 A 914 A 915 B 916 A 917 A 918 A 919 A 920 A 921 A 922 A 923 A 924 A 925 A 926 A 927 A 928 A 929 A 930 A 931 A 932 B 933 A 934 A 935 A 936 B 937 B 938 A 939 B 940 B 941 A 942 A 943 A 944 A 945 A 946 A 947 A 948 A 949 A 950 A 951 A 952 A 953 B 954 A 955 A 956 C 957 A 958 A 959 A 960 B 961 A 962 A 963 A 964 A 965 A 966 C 967 C 968 C 969 A 970 A 971 A 972 A 973 B 974 C 975 C 976 C 977 C 978 C 979 A 980 A 981 A 982 A 983 A 984 A 985 C 986 987 C 988 B 989 B 990 B 991 A 992 A 993 A 994 A 995 A 996 A 997 A 998 A 999 A 1000 A 1001 A 1002 A 1003 A 1004 A 1005 A 1006 A 1007 A 1008 A 1009 A 1010 A 1011 A 1012 A 1013 A 1014 A 1015 A 1016 A 1017 A 1018 A 1019 A 1020 A 1021 A 1022 A 1023 1024 A 1025 A 1026 B 1027 A 1028 A 1029 A 1030 A 1031 A 1032 B 1033 A 1034 A 1035 A 1036 A 1037 A 1038 A 1039 A 1040 A 1041 A 1042 A 1043 C 1044 B 1045 B 1046 B 1047 B 1048 B 1049 C 1050 B 1051 A 1052 A 1053 A 1054 A 1055 A 1056 B 1057 B 1058 C 1059 A A: GI₅₀ < 50 nM; B: 50 nM ≤ GI₅₀ < 500 nM; C: 500 nM ≤ GI₅₀ < 5000 nM; D: 5000 ≤ nM GI₅₀

As shown in Table 2 and Table 3 above, the example compounds of the present invention exhibit high suppression activity against EGFR single or double mutations or ERB32 mutations in the Ba/F3 cell line.

Table 4 below shows the results of evaluating proliferation suppression activity (GI₅₀) against the EGFR mutant lung cancer cell lines PC9, PC9GR and H1975.

TABLE 4 Example cancer cell (GI₅₀(nM)) Compound PC9GR H1975 PC9 A549 4 20 28 1 >15000 6 32 60 1 >15000 9 4 6 1 >15000 10 10 13 14 >15000 11 7 9 2 >15000 12 5 8 12 >15000 13 64 63 12 >15000 15 6 13 7 >15000 30 6 1 1 — 57 4 1 1 — 236 7 1 1 — 238 4 1 1 — 239 5 1 1 — 241 12 1 1 — 242 23 4 1 — Poziotinib 20 34 1 >15000 Osimertinib 16 36 7 2414 Lazertinib 14 24 5 4819

In Table 4, it can be seen that the example compounds of the present invention exhibit good proliferation suppression activity against the EGFR mutant lung cancer cell lines PC9, PC9GR and H1975.

FIG. 1 shows experimental data results examining whether or not cancer was suppressed when the example compounds were orally administered to a PDX (Exon20ins V769_D770ins ASV) cell line xenograft in vivo model for 28 days, then observed for 21 days without administration. (Testing consigned to Champions Oncology, Inc.)

Referring to FIG. 1, it can be seen that the example compounds of the present invention reduce tumor size in an animal model, thereby exhibiting effective suppression of cancer.

TABLE 5 % inhibition of scanMAX Kinase profiling Example Compound Protein 4 6 9 30 57 236 238 239 241 242 EGFR(E746-A750del) 100 100 100 95 98 89 100 96 100 50 EGFR(G719C) 100 100 100 100 100 100 100 100 100 100 EGFR(G719S) 100 100 100 100 100 100 100 99 99 100 EGFR(L747-E749del, A750P) 97 100 100 100 98 98 91 95 98 99 EGFR(L747-T751del, Sins) 100 100 100 96 100 100 92 93 96 100 EGFR(L858R) 100 100 100 100 100 100 99 100 100 100 EGFR(L858R, T790M) 96 85 96 97 96 98 98 98 98 96 EGFR(L861Q) 100 100 100 100 100 98 98 97 98 100 EGFR(S752-1759del) 100 96 100 99 98 89 91 82 95 100 EGFR(T790M) 99 100 99 100 100 100 100 100 100 100 ERBB2 100 100 100 100 100 100 100 100 100 100 ERBB4 100 100 100 100 100 100 100 100 94 100

Table 5 above shows the results of DiscoverX (eurofin) KINOMEscan (scanMAX platform) kinase profiling testing on compounds 4, 6, 9, 30, 57, 236, 238, 239, 241 and 242. As can be seen in Table 5, high suppression activity was exhibited against the EGFR mutant and ERBB2 and ERBB4. It was confirmed that the above example compounds had high selectivity against EGFR series genes. Accordingly, these can be useful in the treating of cancers wherein this kinase is expressed. In particular, as they have substantially outstanding lung cancer cell line proliferation suppression, they can be useful in the treatment of lung cancer, breast cancer, and brain cancer.

Whereas the present invention has been explained in detail in the above through preferred preparation examples, example compounds and experimental examples, the scope of the present invention is not limited to these specific example compounds and shall be defined by the appended claims. Further, it shall be understood that a person having ordinary skill in the art may make various modifications and changes without departing from the scope of the present invention. 

What is claimed is:
 1. A compound of Formula 1,

wherein: R¹ is hydrogen, halogen, C₁₋₈ alkyl, or C₁₋₈ alkoxy, where the C₁₋₈ alkyl and C₁₋₈ alkoxy of R¹ are, respectively and independently, substituted or unsubstituted by at least one halogen; R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁷ and R⁸ are linked together with the N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms, where the C₁₋₈ alkyl or 3 to 12 atom heterocycloalkyl of R⁷ and R⁸ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₈ alkyl, C₁₋₈ alkoxy and C₁₋₈ alkylamino; R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁹ and R¹⁰ are linked together with the N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms or a heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyl, heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent R selected from among the group consisting of hydroxy, C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, C₁₋₈ alkylcarbonyl, —NR¹²R¹³, and heterocycloalkyls of 3 to 12 atoms; where the substituents R are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from the group consisting of halogen; carbonyl; C₁₋₈ alkyl substituted or unsubstituted by hydroxy or C₁₋₈ alkylamino; C₂₋₈ alkenyl; C₁₋₈ alkoxy; C₁₋₈ alkylamino; C₁₋₈ alkylcarbonyl; and a 3 to 12 atom heterocycloalkyl substituted or unsubstituted by C₁₋₈ alkyl, and where the R¹² and R¹³ are, respectively and independently, by hydrogen, C₁₋₈ alkyl, C₂₋₈ alkenyl, C₁₋₈ alkylcarbonyl, C₂₋₈ alkenylcarbonyl, or a 3 to 12 atom heterocycloalkyl substituted or unsubstituted by C₁₋₈ alkyl; R⁴ is —NHC(═O)R¹⁴C═CR¹⁵R¹⁶, where the R¹⁴, R¹⁵ and R¹⁶ are, respectively and independently, hydrogen, halogen, or C₁₋₈ alkyl substituted or unsubstituted by C₁₋₈ alkylamino; R⁵ is C₁₋₈ alkyl, an aryl of 3 to 12 atoms, a heteroaryl of 3 to 12 atoms, or a heterocycloalkyl of 3 to 12 atoms, and the C₁₋₈ alkyl, aryl of 3 to 12 atoms, heteroaryl of 3 to 12 atoms, or heterocycloalkyl of 3 to 12 atoms of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent J selected from the group consisting of halogen, cyano, C₁₋₈ alkyl substituted or unsubstituted by halogen, aryl of 3 to 12 atoms, heteroaryl of 3 to 12 atoms, heterocycloalkyl of 3 to 12 atoms, C₂₋₈ alkenyl, C₁₋₈ alkoxy, C₂₋₈ alkynyl and C₁₋₈ alkylamino, wherein each of the substituents J are independently substituted or unsubstituted with one or more substituents selected from the group consisting of halogen, C₁₋₈ alkyl substituted or unsubstituted by halogen, C₁₋₈ alkoxy, and C₁₋₈ alkylamino, and R⁶ is hydrogen or C₁₋₈ alkyl, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 2. The compound of claim 1, wherein: R¹ is hydrogen, halogen, C₁₋₈ alkyl, or C₁₋₈ alkoxy substituted or unsubstituted by at least one halogen, R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁷ and R⁸ are linked together with the N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms, and the C₁₋₈ alkyl of R⁷ and R⁸ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₈ alkoxy and C₁₋₈ alkylamino, and the 3 to 12 atom heterocycloalkyl formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₈ alkyl and C₁₋₈ alkoxy, R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, hydrogen or C₁₋₈ alkyl, or the R⁹ and R¹⁰ are linked together with the N atom to which they are bonded to form a heterocycloalkyl of 3 to 12 atoms or heteroaryl of 3 to 12 atoms, and the C₁₋₈ alkyls of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent R selected from the group consisting of C₁₋₈ alkoxy and C₁₋₈ alkylamino, where the 3 to 12 atom heterocycloalkyl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(a) selected from the group consisting of hydroxy, C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, C₁₋₈ alkylcarbonyl, —NR¹²R¹³, and heterocycloalkyls of 3 to 12 atoms, and the C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, and C₁₋₈ alkylcarbonyl of the substituent R^(a) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₈ alkyl, C₁₋₈ alkoxy, C₁₋₈ alkylamino, and heterocycloalkyls of 3 to 12 atoms, wherein the heterocycloalkyl of 3 to 12 atoms of the substituent R^(a) is additionally substituted or unsubstituted by at least one substituent selected from the group consisting of halogen; carbonyl; C₁₋₈ alkyl substituted or unsubstituted by a hydroxy or a C₁₋₈ alkylamino; C₂₋₈ alkenyl; C₁₋₈ alkoxy; C₁₋₈ alkylamino; C₁₋₈ alkylcarbonyl; and, a 3 to 12 atom heterocycloalkyl substituted or unsubstituted by C₁₋₈ alkyl, where the R¹² and R¹³ are, respectively and independently, hydrogen, C₁₋₈ alkylcarbonyl, C₂₋₈ alkenylcarbonyl, or a 3 to 12 atom heterocycloalkyl substituted or unsubstituted by C₁₋₈ alkyl, and the 3 to 12 atom heteroaryl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₈ alkyl, R⁴ is —NHC(═O)R¹⁴C═CR¹⁵R¹⁶, where the R¹⁴ is hydrogen or halogen, and the R¹⁵ and R¹⁶ are, respectively and independently, hydrogen or C₁₋₈ alkyl substituted or unsubstituted by an alkylamino of C₁₋₈, R⁵ is a C₁₋₈ alkyl substituted by a 3 to 12 atom aryl or a 3 to 12 atom heteroaryl; an aryl of 3 to 12 atoms; or a heteroaryl of 3 to 12 atoms, where the aryl of 3 to 12 atoms and the heteroaryl of 3 to 12 atoms of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, cyano, C₁₋₈ alkyl, C₁₋₈ alkoxy, and C₂₋₈ alkynyl, C₁₋₈ alkyl substituted with a 3 to 12 atom aryl or 3 to 12 atom heteroaryl of R⁵ is substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, C₁₋₈ alkyl substituted or unsubstituted by halogen, C₁₋₈ alkoxy and C₁₋₈ alkylamino, and R⁶ is hydrogen or C₁₋₈ alkyl, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 3. The compound of claim 1, wherein: R¹ is hydrogen, halogen, C₁₋₄ alkyl, or C₁₋₄ alkoxy substituted or unsubstituted by at least one halogen, R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are linked, together with the N atom to which they are bonded, to form a 3 to 8 atom heterocycloalkyl, where the 3 to 8 atom heterocycloalkyl formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one C₁₋₄ alkyl, R³ is hydrogen, —NR⁹R¹⁰ or —OR¹¹, where R⁹, R¹⁰, and R¹¹ are, respectively and independently, C₁₋₆ alkyl, or R⁹ and R¹⁰ are linked together with the N atom with which they are bonded to form a 3 to 10 atom heterocycloalkyl or 3 to 8 atom heteroaryl, wherein the C₁₋₆ alkyls of R⁹, R¹⁰, and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₄ alkylamino and C₁₋₄ alkoxy, and the 3 to 10 atom heterocycloalkyl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(b) selected from the group consisting of hydroxy, C₁₋₆ alkyl, C₁₋₄ alkoxy, C₁₋₄ alkylamino, C₁₋₄ alkylcarbonyl, —NR¹²R¹³ and heterocycloalkyls of 3 to 10 atoms, the C₁₋₆ alkyl, C₁₋₄ alkoxy, and C₁₋₄ alkylamino of the substituent R^(b) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₆ alkyl, C₁₋₄ alkoxy, and C₁₋₄ alkylamino, the 3 to 10 atom heterocycloalkyl of substituent R^(b) is additionally substituted or unsubstituted by at least one substituent selected from the group consisting of halogen; carbonyl; C₁₋₆ alkyl substituted or unsubstituted by C₁₋₄ alkylamino; C₂₋₄ alkenyl; C₁₋₄ alkylamino; C₁₋₄ alkylcarbonyl; and, a 3 to 8 atom heterocycloalkyl substituted or unsubstituted by C₁₋₄ alkyl, wherein the R¹² and R¹³ are, respectively and independently, hydrogen, C₂₋₄ alkenylcarbonyl, or 3 to 8 atom heterocycloalkyl substituted or unsubstituted by C₁₋₄ alkyl, and the 3 to 8 atom heterocycloalkyl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₄ alkyl, R⁴ is —NHC(═O)R¹⁴C═CR¹⁵R¹⁶, wherein R¹⁴ is hydrogen or halogen, and R¹⁵ and R¹⁶ are, respectively and independently, hydrogen or C₁₋₄ alkyl substituted by an alkylamino of C₁₋₄, R⁵ is a C₁₋₄ alkyl; a 3 to 8 atom aryl; or a 3 to 8 atom heteroaryl substituted by a 3 to 8 atom aryl or 3 to 8 atom heteroaryl; wherein the 3 to 8 atom aryl or 3 to 8 atom heteroaryl of R⁵ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, cyano, C₁₋₄ alkyl substituted or unsubstituted by halogen, C₁₋₄ alkoxy, and C₂₋₄ alkynyl, wherein the C₁₋₄ alkyl substituted by a 3 to 8 atom aryl or 3 to 8 atom heteroaryl of R⁵ is substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, C₁₋₄ alkyl substituted or unsubstituted by halogen, and C₁₋₄ alkylamino; and R⁶ is hydrogen or C₁₋₄ alkyl, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 4. The compound of claim 1, wherein: R¹ is hydrogen, halogen, C₁₋₄ alkyl or C₁₋₄ alkoxy substituted or unsubstituted by at least one halogen; R² is hydrogen or —NR⁷R⁸, where R⁷ and R⁸ are linked together with the N atom to which they are bonded to form a 3 to 8 atom heterocycloalkyl having one or two N atoms, where the 3 to 8 atom heterocycloalkyl formed by the bonding of R⁷ and R⁸ is substituted or unsubstituted by at least one C₁₋₄ alkyl; R³ is hydrogen, —NR⁹R¹⁰, or —OR¹¹, where R⁹, R¹⁰ and R¹¹ are, respectively and independently, C₁₋₆ alkyl, or R⁹ and R¹⁰ are linked together with the N atom to which they are bonded to form a 3 to 10 atom heterocycloalkyl having one or two heteroatoms selected from the group consisting of N and O, or a 3 to 8 atom heteroaryl having one or two heteroatoms selected from the group consisting of N and O, the C₁₋₆ alkyl of R⁹, R¹⁰ and R¹¹ are, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₄ alkylamino and C₁₋₄ alkoxy, the 3 to 10 atom heterocycloalkyl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by at least one substituent R^(c) selected from the group consisting of hydroxy, C₁₋₆ alkyl, C₁₋₄ alkoxy, C₁₋₄ alkylamino, C₁₋₄ carbonyl, —NR¹²R¹³, and 3 to 10 atom heterocycloalkyl having one or two heteroatoms selected from the group consisting of N and O, wherein the C₁₋₆ alkyl, C₁₋₄ alkoxy and C₁₋₄ alkylamino of substituents R^(c) are, respectively and independently, additionally substituted or unsubstituted by at least one substituent selected from the group consisting of C₁₋₆ alkyl, C₁₋₄ alkoxy and C₁₋₄ alkylamino, the 3 to 10 atom heterocycloalkyl of substituents R^(c) is substituted or unsubstituted by halogen; carbonyl; C₁₋₆ alkyl substituted or unsubstituted by C₁₋₄ alkylamino; C₂₋₄ alkenyl; C₁₋₄ alkylamino; C₁₋₄ alkylcarbonyl; and C₁₋₄ alkyl, and additionally substituted or unsubstituted by at least one substituent selected from the group consisting of 3 to 8 atom heterocycloalkyls having one or two heteroatoms selected from the group consisting of N and O, R¹² and R¹³ are, respectively and independently, hydrogen, C₂₋₄ alkenylcarbonyl or C₁₋₄ alkyl, or are 3 to 8 atom heterocycloalkyls having one or two N atoms, and the 3 to 8 atom heteroaryl formed by the bonding of R⁹ and R¹⁰ is substituted or unsubstituted by C₁₋₄ alkyl; R⁴ is —NHC(═O)R¹⁴C═CR¹⁵R¹⁶, wherein the R¹⁴ is hydrogen or halogen, and the R¹⁵ and R¹⁶ are, respectively and independently, C₁₋₄ alkyl substituted by hydrogen or C₁₋₄ alkylamino; R⁵ is a C₁₋₄ alkyl substituted by a 3 to 8 atom aryl or 3 to 8 atom heteroaryl; 3 to 8 atom aryl; or 3 to 8 atom heteroaryl, the 3 to 8 atom aryl or 3 to 8 atom heteroaryl of R⁵ is, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, cyano, C₁₋₄ alkyl substituted or unsubstituted by halogen, C₁₋₄ alkoxy, and C₂₋₄ alkynyl, the C₁₋₄ alkyl substituted by a 3 to 8 atom aryl or a 3 to 8 atom heteroaryl of R⁵ is substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, C₁₋₄ alkyl substituted or unsubstituted by halogen, and C₁₋₄ alkylamino; and R⁶ is hydrogen or C₁₋₄ alkyl, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 5. A compound of Formula 2,

wherein: R¹ is hydrogen or C₁₋₄ alkoxy; R³ is —X—Y—Z, where X and Y are, respectively and independently, single bonds or 3 to 8 atom heterocycloalkyls comprising at least one N atom, and Z is —NR¹⁷R¹⁸ or is represented by Chemical Formula 3,

where, in a case where Z is —NR¹⁷R¹⁸, at least one of X and Y is the 3 to 8 atom heterocycloalkyl comprising at least one N atom, where R¹⁷ and R¹⁸ are, respectively and independently, a C₁₋₄ alkyl substituted or unsubstituted by hydrogen or C₁₋₄ alkylamino, or are linked together with an N atom to which they are bonded to form a 3 to 12 atom heterocycloalkyl; in a case where Z is Chemical Formula 3, L is a C₁₋₄ alkylene substituted or unsubstituted by C₁₋₄ alkyl, M is —NR¹⁹ or —O—, T and Q are, respectively and independently, C₁₋₄ alkyl substituted or unsubstituted by hydrogen or C₁₋₄ alkylamino; T and Q are linked to each other to form a 3 to 12 atom heterocycloalkyl substituted or unsubstituted by C₁₋₄ alkyl; or T and Q are linked to each other, with additional links between at least two different atoms forming a ring, to form a bridged or fused 3 to 12 atom heterocycloalkyl substituted or unsubstituted by a C₁₋₄ alkyl, R¹⁹ is hydrogen, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₁₋₆ alkylcarbonyl, C₁₋₄ alkylamino, or a 3 to 8 atom heterocycloalkyl; R⁵ is a 3 to 8 atom aralkyl, 3 to 8 atom aryl, or 3 to 8 atom heteroaryl, where the 3 to 8 atom aralkyl, 3 to 8 atom aryl, or 3 to 8 atom heteroaryl of R⁵ may be, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of halogen, cyano, C₁₋₄ alkyl, and C₁₋₄ alkoxy, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 6. The compound of claim 5, wherein R¹ is hydrogen, methoxy or ethoxy, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 7. The compound of claim 5, wherein: R³ is —X—Y—Z, where X and Y are, respectively and independently, a single bond, azetidine, pyrrolidine, piperidine or piperazine, and Z is represented by —NR¹⁷R¹⁸ or Chemical Formula 3,

where, in a case where Z is —NR¹⁷R¹⁸, at least one of X and Y is azetidine, pyrrolidine, piperidine or piperazine, where R¹⁷ and R¹⁸ are, respectively and independently methyl or ethyl, or are linked together with an N atom to which they are bonded to be azaspiroctane, in a case where Z is Chemical Formula 3, L is methylene, ethylene, propylene or butylene substituted or unsubstituted by methyl or ethyl, M is —NR¹⁹ or —O—, and T and Q are, respectively and independently, methyl or ethyl substituted or unsubstituted by dimethyl amino; M is —NR¹⁹, and T and Q are linked to each other to form a piperazine substituted or unsubstituted by methyl or ethyl; M is —NR¹⁹, and T and Q are linked together, with additional links between at least two different atoms among the atoms forming the ring, forming a 6 to 8 atom diazabicycloalkyl substituted or unsubstituted by methyl or ethyl; M is —O—, and T and Q are linked together, forming a morpholine substituted or unsubstituted by methyl or ethyl; or M is —O—, and T and Q are linked together, with additional links between at least two different atoms among the atoms forming the ring, forming a 6 to 8 atom oxazabicycloalkyl substituted or unsubstituted by methyl or ethyl; and R¹⁹ is methyl, ethyl, propyl, cyclopropyl, cyclopropylmethyl, cyclobutyl, cyclopentyl, prop-2-en-1-yl, acetyl, dimethylamino, or oxetane, or or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 8. The compound of claim 5, wherein: R⁵ is phenyl, benzyl, pyridine or thiophene, and the phenyl, benzyl, pyridine or thiophene may be, respectively and independently, substituted or unsubstituted by at least one substituent selected from the group consisting of fluoro, chloro, cyano, methyl substituted or unsubstituted by at least one fluoro, and methoxy, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 9. A compound selected from the group consisting of: 1) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((S)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 2) N-(4-methoxy-2-morpholino-5-((6-((S)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 3) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((S)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 4) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 5) N-(4-methoxy-2-morpholino-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 6) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 7) N-(2-(4-cyclopropylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 8) N-(2-(2-(dimethylamino)ethoxy)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 9) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 10) N-(4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 11) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 12) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 13) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 14) N-(2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 15) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 16) N-(2-(4-acetylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 17) N-(4-methoxy-2-((2-methoxyethyl)(methyl)amino)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 18) N-(4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 19) N-(4-methoxy-2-(2-methyl-1H-imidazole-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 20) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 21) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 22) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 23) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 24) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 25) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 26) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 27) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 28) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 29) N-(2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 30) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 31) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 32) N-(4-methoxy-2-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 33) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 34) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 35) N-(4-methoxy-2-(3-methyl-3,6-diazabicyclo[3.1.1]heptane-6-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 36) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 37) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 38) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 39) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 40) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 41) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 42) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 43) N-(4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-morpholinophenyl)acrylamide; 44) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 45) N-(4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 46) N-(2-(4-cyclopropylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 47) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 48) N-(4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 49) N-(2-(4-acetylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 50) N-(2-(4-dimethylaminopiperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 51) N-(2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 52) N-(4-methoxy-2-(4-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 53) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 54) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 55) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 56) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 57) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 58) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 59) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 60) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 61) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 62) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 63) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 64) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 65) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 66) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 67) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 68) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 69) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 70) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 71) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 72) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 73) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 74) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 75) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 76) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 77) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 78) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 79) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 80) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 81) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 82) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 83) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 84) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 85) N-(5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 86) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 87) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 88) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 89) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 90) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 91) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 92) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 93) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 94) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 95) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 96) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 97) N-(2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 98) N-(2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 99) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 100) N-(2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 101) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 102) N-(4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 103) N-(2-(4-(2-oxa-6-azaspiro[3.3]heptane-6-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 104) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(5-ethylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 105) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aR,6aS)-tetrahydro-1H-puro[3,4-c]pyrrole-5(3H)-yl)piperidine-1-yl)phenyl)acrylamide; 106) N-(2-(4-(4-cyclopropyl-3,3-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 107) N-(2-(4-((2R,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 108) N-(2-(4-((2S,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 109) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 110) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 111) N-(2-(4-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 112) N-(2-(4-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 113) N-(2-(4-((2S,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 114) N-(2-(4-((2R,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 115) N-(2-(4-((1R,5S)-8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 116) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-ethoxyphenyl)acrylamide; 117) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)-(E)-4-(dimethylamino)but-2-enamide; 118) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 119) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-(((R)-1,1,1-trifluoropropane-2-yl)oxy)phenyl)acrylamide; 120) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)-2-fluoroacrylamide; 121) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 122) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2R,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 123) N-(2-(4-((2S,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 124) N-(2-(4-((2R,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 125) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 126) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 127) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 128) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 129) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 130) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 131) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 132) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 133) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 134) N-(2-(4-(8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 135) N-(2-(4-(8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 136) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 137) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 138) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 139) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 140) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 141) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 142) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 143) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 144) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 145) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 146) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 147) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(thiophene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 148) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 149) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 150) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 151) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 152) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 153) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 154) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 155) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 156) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 157) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 158) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 159) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 160) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 161) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 162) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 163) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 164) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 165) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 166) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 167) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 168) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 169) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 170) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 171) N-(2-(4-((2S,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 172) N-(2-(4-((2R,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 173) N-(2-(4-((2R,5S)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 174) N-(2-(4-((2S,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 175) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 176) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 177) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 178) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2R,5R)-4-cyclopropyl-2,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 179) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 180) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 181) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropyl-3,3-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 182) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 183) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 184) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 185) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 186) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 187) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 188) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 189) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 190) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 191) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 192) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 193) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 194) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 195) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 196) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 197) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 198) N-(4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 199) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 200) N-(4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 201) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 202) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 203) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 204) N-(2-(4-(4-(cyclopropylmethyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 205) N-(2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 206) N-(2-(4-(4-cyclopentylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 207) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 208) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 209) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 210) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 211) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 212) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 213) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 214) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 215) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 216) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 217) N-(2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 218) N-(4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 219) N-(2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 220) N-(2-(4-isopropylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 221) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 222) N-(2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 223) N-(4-methoxy-2-((2-methoxyethyl)(methyl)amino)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 224) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 225) N-(2-(4-cyclopentylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 226) N-(2-(4-cyclopentylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 227) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 228) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 229) N-(4-methoxy-2-(4-((2-methoxyethyl)(methyl)amino)piperidine-1-yl)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 230) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 231) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 232) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 233) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 234) N-(4-methoxy-2-(4-((1R,4R)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 235) N-(4-methoxy-5-((6-((R)-3-(6-methylpyridine-3-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-morpholino-[1,4′-bipiperidine]-1′-yl)phenyl)acrylamide; 236) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 237) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 238) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 239) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 240) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 241) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 242) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 243) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 244) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 245) N-(2-(4-(dimethylamino)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 246) N-(2-(4-ethylpiperazine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 247) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 248) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 249) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(3-ethyl-3,6-diazabicyclo[3.1.1]heptane-6-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 250) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 251) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 252) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(6-ethyl-3,6-diazabicyclo[3.1.1]heptane-3-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 253) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-4-(dimethylamino)-1,4′-bipiperidine-1′-yl)-4-methoxyphenyl)acrylamide; 254) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 255) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 256) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 257) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 258) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 259) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 260) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)phenyl)acrylamide; 261) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-(3-methyl-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 262) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 263) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 264) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 265) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 266) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 267) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 268) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 269) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-methyl-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 270) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-methyl-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 271) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 272) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 273) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 274) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methyl-3-oxopiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 275) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1-isopropylpiperidine-4-yl)amino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 276) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 277) N-(2-(4-(cyclopropylmethyl)piperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 278) N-(2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 279) N-(2-(4-cyclopentylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 280) N-(2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 281) N-(2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 282) N-(4-methoxy-2-(4-methyl-1H-imidazole-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 283) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 284) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 285) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 286) N-(2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 287) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 288) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 289) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 290) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 291) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 292) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 293) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 294) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 295) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 296) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 297) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 298) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 299) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 300) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-propylpiperazine-1-yl)phenyl)acrylamide; 301) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 302) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 303) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 304) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 305) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-(1,4′-bipiperidine)-1′-yl)-4-methoxyphenyl)acrylamide; 306) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 307) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 308) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 309) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 310) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 311) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 312) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 313) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 314) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 315) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 316) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 317) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 318) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 319) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 320) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 321) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 322) N-(2-(4-((1R,5S)-8-oxa-3-azabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 323) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 324) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 325) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 326) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 327) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 328) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 329) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 330) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(2-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 331) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 332) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 333) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 334) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 335) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 336) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 337) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-2-methylmorpholino)phenyl)acrylamide; 338) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-2-methylmorpholino)phenyl)acrylamide; 339) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 340) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 341) N-(2-(4,4-difluoro-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 342) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-propylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 343) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 344) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 345) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)phenyl)acrylamide; 346) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 347) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 348) N-(2-(4-cyclopentylpiperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 349) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 350) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 351) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 352) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 353) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 354) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 355) N-(2-(4-(6-azaspiro[2.5]octan-6-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 356) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 357) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 358) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropyl-1,4-diazepane-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 359) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 360) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 361) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 362) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 363) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 364) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 365) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 366) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 367) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 368) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 369) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 370) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((3S,5R)-4-ethyl-3,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 371) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 372) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 373) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 374) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 375) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 376) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 377) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(5-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 378) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 379) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)phenyl)acrylamide; 380) N-(2-(4-(cyclopropylmethyl)piperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 381) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 382) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 383) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 384) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 385) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 386) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 387) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((2-methoxyethyl)(methyl)amino)piperidine-1-yl)phenyl)acrylamide; 388) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-3-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 389) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 390) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-hydroxypiperidine-1-yl)-4-methoxyphenyl)acrylamide; 391) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 392) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 393) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 394) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 395) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 396) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 397) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)-(E)-4-(dimethylamino)but-2-enamide; 398) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 399) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 400) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 401) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 402) N-(1-(2-acrylamido-4-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-5-methoxyphenyl)piperidine-4-yl)-N-(1-isopropylpiperidine-4-yl)acrylamide; 403) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 404) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 405) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 406) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 407) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 408) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 409) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 410) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 411) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 412) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 413) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 414) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 415) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 416) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 417) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 418) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 419) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 420) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 421) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 422) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 423) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 424) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 425) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 426) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholino-[1,4′-bipiperidine]-1′-yl)phenyl)acrylamide; 427) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 428) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 429) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 430) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 431) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 432) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-propylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 433) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4,4-difluoro-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 434) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 435) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 436) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 437) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 438) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 439) N-(4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 440) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 441) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 442) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 443) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 444) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 445) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 446) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 447) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 448) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 449) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 450) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 451) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 452) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 453) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 454) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 455) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 456) N-(5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 457) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 458) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 459) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 460) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 461) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 462) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 463) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 464) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 465) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 466) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 467) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 468) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 469) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 470) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 471) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 472) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 473) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((1R,4R)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)phenyl)acrylamide; 474) N-(2-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 475) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 476) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 477) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)-[1,4′-bipiperidine]-1′-yl)phenyl)acrylamide; 478) N-(5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 479) N-(2-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)-5-((6-((R)-3-(2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 480) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 481) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 482) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 483) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 484) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 485) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 486) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 487) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 488) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 489) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 490) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 491) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 492) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 493) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 494) N-(5-((6-((R)-3-(3-cyanophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 495) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(3-methoxy-3-methylbutoxy)phenyl)acrylamide; 496) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(3-methoxy-3-methylbutoxy)phenyl)-(E)-4-(dimethylamino)but-2-enamide; 497) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 498) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 499) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 500) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 501) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 502) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 503) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 504) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 505) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 506) N-(4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 507) N-(4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 508) N-(5-((6-((R)-3-(3-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 509) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 510) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 511) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 512) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 513) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 514) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 515) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 516) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 517) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 518) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 519) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 520) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 521) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 522) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 523) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 524) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 525) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 526) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 527) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 528) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 529) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 530) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 531) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 532) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 533) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-fluorophenyl)acrylamide; 534) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methylphenyl)acrylamide; 535) N-(4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 536) N-(4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(naphthalene-1-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 537) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 538) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 539) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 540) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 541) N-(5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)piperidine-1-yl)phenyl)acrylamide; 542) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(3-methyl-3,6-diazabicyclo[3.1.1]heptane-6-yl)phenyl)acrylamide; 543) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 544) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 545) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 546) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 547) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-propylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 548) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 549) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-propylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 550) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 551) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 552) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 553) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 554) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 555) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 556) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 557) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 558) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 559) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 560) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 561) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)phenyl)acrylamide; 562) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)phenyl)acrylamide; 563) N-(2-(4-cyclopentylpiperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 564) N-(2-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 565) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 566) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 567) N-(2-(4-(cyclopropylmethyl)piperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 568) N-(2-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 569) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 570) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 571) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 572) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 573) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 574) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 575) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 576) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 577) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 578) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 579) N-(5-((6-((R)-3-(3,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 580) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 581) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4,4-difluoro-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 582) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-propylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 583) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 584) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 585) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 586) N-(5-((6-((R)-3-(3-chloro-2-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 587) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(3-(4-cyclopropylpiperazine-1-yl)azetidine-1-yl)-4-methoxyphenyl)acrylamide; 588) N-(2-(3-(4-cyclopropylpiperazine-1-yl)azetidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 589) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 590) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 591) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-hydroxypiperidine-1-yl)-4-methoxyphenyl)acrylamide; 592) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 593) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 594) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 595) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 596) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 597) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 598) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 599) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 600) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 601) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 602) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 603) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 604) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 605) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 606) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 607) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 608) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 609) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 610) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 611) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 612) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 613) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2-(dimethylamino)ethyl)(methyl)amino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 614) N-(5-((6-((R)-3-(2,3-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholino-[1,4′-bipiperidine]-1′-yl)phenyl)acrylamide; 615) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 616) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 617) N-(5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 618) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 619) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 620) N-(4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 621) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 622) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 623) N-(4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 624) N-(4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 625) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-((dimethylamino)methyl)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 626) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-((dimethylamino)methyl)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 627) N-(5-((6-((R)-3-(3-chloro-5-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 628) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 629) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 630) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 631) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 632) N-(4-methoxy-2-(4-morpholinopiperidine-1-yl)-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 633) N-(3-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-5-(4-methylpiperazine-1-yl)phenyl)acrylamide; 634) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 635) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 636) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 637) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 638) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 639) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 640) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 641) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 642) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 643) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 644) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 645) N-(4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 646) N-(4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 647) N-(2-(4-(dimethylamino)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 648) N-(2-(4-ethylpiperazine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 649) N-(5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 650) N-(5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 651) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 652) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 653) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 654) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 655) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(3-ethynylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 656) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxy-5-((6-((R)-3-(2,3,4-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 657) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-2-methylmorpholino)phenyl)acrylamide; 658) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2S,6S)-2,6-dimethylmorpholino)-4-methoxyphenyl)acrylamide; 659) N-(4-methoxy-2-((S)-2-methylmorpholino)-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 660) N-(2-((2S,6S)-2,6-dimethylmorpholino)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 661) N-(5-((6-((R)-3-(2-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 662) N-(2-((S)-3,4-dimethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 663) N-(4-methoxy-2-((R)-2-methylmorpholino)-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 664) N-(2-((2S,6R)-2,6-dimethylmorpholino)-4-methoxy-5-((6-((R)-3-(naphthalene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 665) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 666) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-2-methylmorpholino)phenyl)acrylamide; 667) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2S,6R)-2,6-dimethylmorpholino)-4-methoxyphenyl)acrylamide; 668) N-(5-((6-((R)-3-(3-chloro-2,4-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 669) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 670) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 671) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 672) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 673) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 674) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((1R,4R)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)phenyl)acrylamide; 675) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 676) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 677) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 678) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 679) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 680) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 681) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 682) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 683) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 684) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)phenyl)acrylamide; 685) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)phenyl)acrylamide; 686) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 687) N-(2-(4-(cyclopropylmethyl)piperazine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 688) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 689) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 690) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 691) N-(5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 692) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 693) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 694) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 695) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 696) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 697) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 698) N-(2-(4-ethylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 699) N-(2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 700) N-(2-(4-(6-azaspiro[2.5]octan-6-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 701) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 702) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 703) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 704) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 705) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 706) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 707) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 708) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 709) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 710) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 711) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 712) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 713) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(3-(dimethylamino)azetidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 714) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 715) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 716) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 717) N-(2-(4-(4-cyclopropyl-1,4-diazepane-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 718) N-(2-(4,4-difluoro-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 719) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 720) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 721) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 722) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methyl-2-oxopiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 723) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 724) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 725) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 726) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 727) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 728) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 729) N-(2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 730) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 731) N-(2-(4-(dimethylamino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 732) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 733) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 734) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 735) N-(2-(4-((2-(dimethylamino)ethyl)(methyl)amino)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 736) N-(4-methoxy-2-(4-((2-methoxyethyl)(methyl)amino)piperidine-1-yl)-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 737) N-(2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 738) N-(2-(4-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 739) N-(2-(4-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 740) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 741) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 742) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 743) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 744) N-(2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 745) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 746) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 747) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 748) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-(3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 749) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 750) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 751) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 752) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6S)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 753) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 754) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 755) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 756) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 757) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 758) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 759) N-(2-(4-((1R,5S)-8-oxa-3-azabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 760) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 761) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-2,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 762) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-2,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 763) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 764) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 765) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 766) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 767) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 768) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 769) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 770) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 771) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 772) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 773) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 774) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 775) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 776) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 777) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 778) N-(4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-morpholinopyrolidine-1-yl)phenyl)acrylamide; 779) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 780) N-(2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 781) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxy-5-((6-((R)-3-(3-methoxyphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 782) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 783) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 784) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 785) N-(5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 786) N-(5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 787) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-phenylisoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 788) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 789) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 790) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 791) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 792) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 793) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 794) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 795) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 796) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 797) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 798) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 799) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 800) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 801) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 802) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 803) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 804) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 805) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 806) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 807) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 808) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 809) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 810) N-(2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 811) N-(2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 812) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 813) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 814) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 815) N-(2-(4-(4-acetylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 816) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 817) N-(2-(4,4-difluoro-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 818) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 819) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 820) N-(2-(4-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 821) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 822) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 823) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 824) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 825) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 826) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 827) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((3S,5R)-4-ethyl-3,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 828) N-(2-(4-(6-azaspiro[2.5]octan-6-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 829) N-(2-(4-(4-cyclopropyl-1,4-diazepane-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 830) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 831) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 832) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 833) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 834) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 835) N-(2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 836) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 837) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)phenyl)acrylamide; 838) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 839) N-(2-((S)-3-(dimethylamino)pyrolidine-1-yl)-5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 840) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 841) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((3S,5R)-4-ethyl-3,5-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 842) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-3-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 843) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-3-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 844) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 845) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 846) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 847) N-(2-(4-ethylpiperazine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 848) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 849) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 850) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 851) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 852) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(hexahydropyrrolo[1,2-a]pyrazine-2(1H)-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 853) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 854) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 855) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 856) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 857) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)phenyl)acrylamide; 858) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 859) N-(5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 860) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 861) N-(5-((6-((R)-3-(3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(2-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 862) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 863) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(4-chloro-3-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 864) N-(2-(4-(dimethylamino)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 865) N-(5-((6-((R)-3-(3,4-dichloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 866) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 867) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 868) N-(5-((6-((R)-3-(4-chlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 869) N-(5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 870) N-(2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-5-((6-((R)-3-(4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 871) N-(2-(4-((1R,5S)-8-oxa-3-azabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 872) N-(2-(4-(6-azaspiro[2.5]octan-6-yl)piperidine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 873) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 874) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 875) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 876) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 877) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)piperidine-1-yl)phenyl)acrylamide; 878) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((3S,5R)-4-ethyl-3,5-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 879) N-(2-((S)-4-cyclopropyl-2-methylpiperazine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 880) N-(2-((R)-4-cyclopropyl-2-methylpiperazine-1-yl)-5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 881) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 882) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 883) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 884) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 885) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-2,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 886) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-2,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 887) N-(2-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 888) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((S)-2-methylmorpholino)phenyl)acrylamide; 889) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((R)-2-methylmorpholino)phenyl)acrylamide; 890) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 891) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 892) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 893) N-(5-((6-((R)-3-(2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 894) N-(2-(4-(4-(sec-butyl)piperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 895) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 896) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 897) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 898) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aR,6aR)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 899) N-(5-((6-((S)-3-(2,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((3aS,6aS)-1-methylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-yl)phenyl)acrylamide; 900) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 901) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3,4-dimethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 902) N-(2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 903) N-(2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 904) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 905) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 906) N-(5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 907) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((R)-3-(3-chloro-4-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 908) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 909) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 910) N-(2-(4-((S)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 911) N-(5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 912) N-(2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-5-((6-((R)-3-(2-fluoro-3-methylphenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 913) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 914) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-3-(dimethylamino)pyrolidine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 915) N-(5-((6-((R)-3-(3-chloro-2-fluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)-[1,4′-bipiperidine]-1′-yl)-4-methoxyphenyl)acrylamide; 916) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-3,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 917) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 918) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-2,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 919) N-(5-((6-((R)-3-(3,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((S)-2,4-dimethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 920) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 921) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 922) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-ethylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 923) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 924) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 925) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 926) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 927) N-(5-((6-((R)-3-(2,3-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 928) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((6-((R)-3-(thiophene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 929) N-(4-methoxy-2-(4-methylpiperazine-1-yl)-5-((6-((R)-3-(thiophene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 930) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(thiophene-2-yl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 931) N-(5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-(oxetane-3-yl)piperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 932) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((R)-3-(3,4-dichlorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 933) N-(5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 934) N-(5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 935) N-(5-((6-((R)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 936) N-(5-((6-((S)-3-(2-chloro-3,6-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 937) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(2,3,6-trifluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 938) N-(5-((6-((R)-3-(3-chloro-2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 939) N-(5-((6-((R)-3-(3-chloro-2,5-difluorophenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 940) N-(2-(4-cyclopropylpiperazine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 941) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 942) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 943) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 944) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(3-(trifluoromethyl)phenyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 945) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 946) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 947) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 948) N-(2-(4-acetylpiperazine-1-yl)-5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 949) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1R,4R)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 950) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1S,4S)-5-ethyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)-4-methoxyphenyl)acrylamide; 951) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(dimethylamino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 952) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 953) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-((2-methoxyethyl)(methyl)amino)phenyl)acrylamide; 954) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-isopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 955) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 956) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 957) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxyphenyl)acrylamide; 958) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(oxetane-3-yl)piperazine-1-yl)phenyl)acrylamide; 959) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(cyclopropylmethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 960) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(2-methyl-1H-imidazole-1-yl)phenyl)acrylamide; 961) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 962) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)-4-methoxyphenyl)acrylamide; 963) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(4-methylpiperazine-1-yl)piperidine-1-yl)phenyl)acrylamide; 964) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 965) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 966) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-morpholinophenyl)acrylamide; 967) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(cyclopropylmethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 968) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 969) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(5-methyl-2,5-diazabicyclo[2.2.1]heptane-2-yl)phenyl)acrylamide; 970) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)phenyl)acrylamide; 971) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)phenyl)acrylamide; 972) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopentylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 973) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 974) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(1-methylpiperidine-4-yl)piperazine-1-yl)phenyl)acrylamide; 975) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-(tetrahydro-2H-pyran-4-yl)piperazine-1-yl)phenyl)acrylamide; 976) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(dimethylamino)ethyl)piperazine-1-yl)-4-methoxyphenyl)acrylamide; 977) N-(5-((6-((R)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopentylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 978) N-(5-((6-((S)-3-benzylisoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(2-(diethylamino)ethoxy)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 979) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 980) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 981) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 982) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 983) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 984) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((R)-3-(dimethylamino)pyrolidine-1-yl)-4-methoxyphenyl)acrylamide; 985) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 986) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 987) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 988) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 989) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 990) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 991) N-(5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 992) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 993) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 994) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 995) N-(2-(4-((1R,5S)-8-cyclopropyl-3,8-diazabicyclo[3.2.1]octan-3-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 996) N-(5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-morpholinopiperidine-1-yl)phenyl)acrylamide; 997) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 998) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 999) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1000) N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1001) N-(5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-methylpiperazine-1-yl)phenyl)acrylamide; 1002) N-(2-((R)-3-(dimethylamino)pyrolidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1003) N-(2-(4-ethylpiperazine-1-yl)-5-((6-(S)-(3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1004) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1005) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1006) N-(5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 1007) N-(5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1008) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-ethylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 1009) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1010) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((2S,6R)-2,6-dimethylmorpholino)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1011) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((R)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 1012) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1013) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxy-2-(4-((S)-2-methylmorpholino)piperidine-1-yl)phenyl)acrylamide; 1014) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1015) N-(5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-isopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1016) N-(5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 1017) N-(5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 1018) N-(5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1019) N-(5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1020) N-(5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1021) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1022) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-chloro-2-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1023) N-(2-(4-(4-cyclobutylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1024) N-(2-(4-(4-allylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(2,3-dichlorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1025) N-(5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1026) N-(5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 1027) N-(5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1028) N-(5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1029) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1030) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-chloro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1031) N-(5-((6-((S)-3-(3,5-difluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxyphenyl)acrylamide; 1032) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-(S)-(3-(3,5-difluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1033) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3,5-difluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1034) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3,5-difluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1035) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3,5-difluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1036) N-(5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1037) N-(5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1038) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1039) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1040) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-fluoro-2-methylbenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1041) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1042) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(2-chloro-3-fluorobenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1043) N-(2-(4-cyclopropylpiperazine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1044) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1045) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1046) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1047) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1048) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-(dimethylamino)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1049) N-(2-(4-cyclopropylpiperazine-1-yl)-4-methoxy-5-((6-((S)-3-(4-(trifluoromethyl)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1050) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(4-(trifluoromethyl)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1051) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(4-(trifluoromethyl)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1052) N-(2-(4-((1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(4-(trifluoromethyl)benzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1053) N-(5-((6-((S)-3-(3-chloro-2-methoxybenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-cyclopropylpiperazine-1-yl)-4-methoxyphenyl)acrylamide; 1054) N-(5-((6-((S)-3-(3-chloro-2-methoxybenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxyphenyl)acrylamide; 1055) N-(2-(4-((1R,4R)-2-oxa-5-azabicyclo[2.2.1]heptane-5-yl)piperidine-1-yl)-5-((6-((S)-3-(3-chloro-2-methoxybenzyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)-4-methoxyphenyl)acrylamide; 1056) N-(2-(4-((R)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1057) N-(2-(4-((S)-4-cyclopropyl-3-methylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-3-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; 1058) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((R)-3-(pyridine-2-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide; and 1059) N-(2-(4-(4-cyclopropylpiperazine-1-yl)piperidine-1-yl)-4-methoxy-5-((6-((S)-3-(pyridine-2-ylmethyl)isoxazolidine-2-yl)pyrimidine-4-yl)amino)phenyl)acrylamide, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof.
 10. A pharmaceutical composition comprising a compound of claim 1, or a stereoisomer, hydrate, or pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable carriers.
 11. A compound selected from the group consisting of:

or a pharmaceutically acceptable salt thereof.
 12. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 13. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 14. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 15. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 16. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 17. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 18. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 19. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 20. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 21. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 22. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 23. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 24. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 25. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 26. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 27. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 28. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 29. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 30. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 31. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 32. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 33. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 34. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 35. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 36. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 37. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 38. The compound of claim 11 which is

or a pharmaceutically acceptable salt thereof.
 39. A pharmaceutical composition comprising a compound of claim 11, or a pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable carriers. 